SUMMER HOLIDAY HOME WORK - 2024-25

CLASS : XI
Medical and non Medical

SR. NO SUBJECT NAME

1. ENGLISH

2. BIOLOGY/ MATHS

3. CHEMISTRY

4. PHYSICS

5. IT/CS/PE
ENGLISH PROJECT
Session: 2024-25
Marks -10 Marks
Marking Scheme
Project File- 5 Marks,
Viva Voice – 5 marks
Submission Date: 5 July 2024

The students will prepare a Project File on any one of the following topics

1*Child Labour
2 Overcoming Fears (Phobias)
3 Transforming Lives Through Kindness and Empathy
4 Gandhian Principles of Satyagraha and non-violence - How relevant are they in current
scenario ?
5) Fantasy World of a Teenager
6)Care of the Elderly
7)Violence Against Women in India
8) Global Warming: Revelations from Arctic and Antarctic Regions
.9) How to Overcome Disability?
10)Education is Empowerment: Fighting Marginalization
11)Factors responsible for school dropouts after grade XII and its impact on teenagers.
*INSTRUCTIONS
The students will prepare a questionnaire on any of their chosen topic and write it along with
its responses in the file/ they can also make a Google questionnaire and paste it along with the
responses in the file and will write a detailed report/ essay on the topic in about 800-1000
words.
Contents of the Project File:
1. Cover Page - Title of the project School details / Student details
2. Index
3. Certificate of completion
4. Purpose / Objective / Goals.
5. Action Plan
6. Acknowledgement
7. Material - Survey / Questionnaires/Interviews
8. Responses
9. Report/ Analysis -Word Limit - 800 - 1000 words
10. Reflection.

11. List of resources / Bibliography.

Rubrics
Content/Relevance
Creativity
Expression
Presentation
* For any query students may contact their respective subject teacher.…
 Holiday Homework (2024-25)
Class- XI ENGLISH (301)
Worksheet
General Instructions:
i) All questions are compulsory.
ii) This question paper has three sections.
iii) Attempt questions based on specific instructions given for each section.

Section – A (Reading) 8 marks

1. Read the passage given below:
Effective speaking depends on effective listening. It takes energy to concentrate on
hearing and to concentrate on understanding what has been heard. Incompetent
listeners fail in a number of ways. First, they may drift. Their attention drifts from
what the speaker is saying. Second, they may counter. They find counter-arguments
to whatever a speaker may be saying. Third, they compete. Then, they filter. They
exclude from their understanding those parts of the message which do not readily
fit with their own frame of reference. Finally, they react. They let personal feelings
about a speaker or subject override the significance of the message which is being
sent.
What can a listener do to be more effective? The first key to effective listening is the art of
concentration. If a listener positively wishes to concentrate on receiving a message his
chances of success are high.
It may need determination. Some speakers are difficult to follow, either because of
voice problems or because of the form in which they send a message. There is then
a particular need for the determination of a listener to concentrate on what is being
said.
Concentration is helped by alertness. Mental alertness is helped by physical
alertness. It is not simply physical fitness, but also positioning of the body, the limbs
and the head. Some people also find it helpful to their concentration if they hold the
head slightly to one side. One useful way for achieving this is intensive note-taking,
by trying to capture the critical headings and sub-headings the speaker is referring
to.
Note-taking has been recommended as an aid to the listener. It also helps the
speaker. It gives him confidence when he sees that listeners are sufficiently
interested to take notes; the patterns of eye-contact when the note-taker looks up
can be very positive; and the speaker’s timing is aided-he can see when a note-taker
is writing hard and can then make effective use of pauses.
Posture too is important. Consider the impact made by a less competent listener
who pushes his chair backwards and slouches. An upright posture helps a listener’s
concentration. At the same time it is seen by the speaker to be a positive feature
amongst his listeners. Effective listening skills have an impact on both the listener
and the speaker.

i Make notes on the above passage in any suitable format using recognizable 3
abbreviations wherever necessary. Assign a suitable heading to the passage.
ii Assign a suitable heading to the passage. 1
iii Provide key to abbreviations 1
iv Write a summary of the passage in not more than 80 words using the notes made 3
2. Media has a stronghold on society. Write a speech in 125-150 words on how media 5X1=5
influences public opinion to be delivered in the school assembly.
3 Read the paragraph given below. Fill in the blanks by choosing the most 1.5X4=2
appropriate words or phrases from the given options.
Phalke (a)_______________ a film company, Hindustan Films in (b)_______________ with
five businessmen from Mumbai, in (c)_______________hope that, by having the
financial of his profession handled by experts, he (d)_______________ free to pursue
the creative aspect.
(a) (i) forms (ii) form (iii) form (iv) forming
(b) (i) partnership (ii) Partner (iii) partnerships (iv) partners
(c) (i) a (ii) the (iii) this (iv) an
(d) (i) was (ii) were (ii) would be (iv) is.

Section – C (Literature)
4 Read the given passage and answer the questions that follow 1X4=4
The laburnum top is silent, quite still
In the afternoon yellow September sunlight,
A few leaves yellowing, all its seeds fell.
Till the goldfinch comes, with a twitching chirrup
A suddenness, a startlement, at a branch end.
i. The Laburnum Top is --------
(a) silent
(b) blossoming
(c) quiet
(d) beautiful
1. Only (a)
2. (b) and (c)
3. (a) and(b)
4. (c) and (d)
ii. On the basis of the extract, choose the correct option with reference to the
two statements given below.
1. The laburnum Top’s seeds have fallen.
2. The laburnum top’s leaves are yellow
(a)1 can be inferred from the extract but 2 cannot
(b) 2 can be inferred from the extract but 1 cannot
(c) Both 1 and 2 can be inferred from the extract
(d) 2 is the reason for 1
iii. Which poetic device has been used in the given extract
(a)Irony
(b) Simile
(c) Oxymoron
(d) Repetition
iv. What commotion does the bird create? How?
v. What is the significance of the ‘Laburnum top’ here?

5 Answer the following questions in 80-100 words: 2X2=4

i. Did the boys return the horse because they were conscience-stricken or
because they were afraid?
ii. Why did the narrator call Le Amsterdam the most beautiful Island in the
world.

6 Answer the following questions in 80-100 words 4 marks

Recently John Byro met uncle Khosrove and talked about his problem that
someone had stolen his horse, uncle Khosrove behaved so irresponsible. Write a
diary impersonating yourself as John Byro and give vent to your pent-up feelings.
OR
“The strength of a family, like the strength of an army, lies in its loyalty to each
other.” In the light of the above quotes justify the title of the story: “We’re Not Afraid
to Die…”
 SUBJECT: MATHEMATICS
Holiday Homework
Grade XI

1. Solve the worksheet based on the following topics.

a) Relations and Functions
b) Trigonometric Functions
c) Complex Numbers

2. Complete your notebooks so that after vacation it should be submitted for checking.

3. With the help of given pdf start your Mathematics practical file work. Figures must be
drawn on left page neatly. On right page write the description of the particular activity
with the help of black pen(for headings) and blue pen( rest of the work). Use a good
quality hard cover practical file(Classmate practical file is suggested)

All the work should be done neatly as it is a part of your internal assessment.
 HOLIDAY HOMEWORK (2024-25)
Class –XI Mathematics (041)
1. Find the degree measure of
7𝜋 3
a) (12 ) b) 4 c) -2

2. Find the radian measure of

a) −37°30′ b) 15° c) 7°30′
3. The minute hand of the watch is 1.4 cm long. How far does its tip move in 45
minutes?

4. 𝜋
In a right angled triangle, the difference between the two acute angles is (15) radian.
Find the angle in degrees.

5. Find the value of

25𝜋 41𝜋 33𝜋
a) sin ( ) b) cos ( ) c) 𝑐𝑜𝑠𝑒𝑐 (− )
3 4 4
16𝜋
d) tan (− 3 ) e) cos(−𝜋) f) sin(16𝜋)
g) cos⁡(−2220°) h) cot⁡(585°) i) sec⁡(−1470°)

6. 13𝜋
Evaluate tan ( 12 ).

7. cos 11°+sin 11°

Prove = tan 56°
cos 11°−sin 11°

8. 𝑐𝑜𝑠𝜃 sin(−𝜃) tan(90°+𝜃)

Prove that sin⁡(90+𝜃) + sin⁡(180°+𝜃) − =3
cot 𝜃

9. Prove that sin 10° sin 50° sin 60° sin 70° =
√3
16

10. Find value of sin 18°.

1
11. Find value of tan 22 2 °.

12. 𝜋 𝜋 3
In a ∆𝐴𝐵𝐶 prove that cos 2 𝐴 + cos 2 (𝐴 + ) + cos 2 (𝐴 − ) =
3 3 2

13. sin 8𝑥 cos 𝑥−sin 6𝑥 cos 3𝑥⁡

Prove that = tan 2𝑥
cos 2𝑥 cos 𝑥−sin 4𝑥 sin 3𝑥
14. The below figure shows the compass. The East direction is along the positive X-axis (0°
angle) and North direction is along the +ve Y-axis (90° angles). Initially the pointer is
pointed towards Northeast direction. Pointer is deflected in a magnetic field by some
angle.

On the basis of above answer the following.

(i) If pointer move in anticlockwise direction by an angle of 90°, then find the
value of sine of angle made by pointer from East direction.
(ii) If pointer moves an angle of 165° from its initial position in anticlockwise
direction, then find the value of cosine of angle made by pointer from East
direction.
1
(iii) If the sine and cosine of angle made by pointer with East direction is − 2⁡then
find where the pointer pointed?
(iv) How much angle will pointer move in antilock wise direction if tangent of
angle made by pointer with x-axis is – 1?
15. Determine the domain and range of the relation R defined by 𝑅 = {(𝑥 + 1, 𝑥 +
5): 𝑥 ∈ (0,1,2,3,4,5)}
Write the relation R in set⁡𝐴 = {𝑥 ∈ 𝑍, |𝑥| ≤ 5}, defined as 𝑅 = {(𝑎, 𝑏) ∈ 𝐴 × 𝐴|𝑏 =
16. 2𝑎 + 3}. Find domain and range.
17. Let 𝐴 = {1,2,3}; 𝐵 = {3,4} and 𝐶 = {4,5,6}, find
1.𝐴 × (𝐵 ∩ 𝐶) 2. (𝐴 × 𝐵) ∩ (𝐴 × 𝐶) 3. (𝐴 × 𝐵) ∪ (𝐴 × 𝐶)
18. Find the domain of each of the following functions given by:
𝑥 𝑥 3 −𝑥+3
1.⁡𝑥2 +3𝑥+2 2. 𝑓 (𝑥 ) = 𝑥|𝑥 | 3. 𝑥 2 −1

19. Find the range of following functions given by:

3
1. |𝑥 − 3| 2. √16 − 𝑥 2 3. 𝑓 (𝑥 ) = 2−𝑥2
20. Write a set {𝑥: 𝑥⁡𝑖𝑠⁡𝑎⁡𝑝𝑜𝑠𝑖𝑡𝑖𝑣𝑒⁡𝑖𝑛𝑡𝑒𝑔𝑒𝑟⁡𝑎𝑛𝑑⁡𝑥 2 < 40} in the roster form.
21. Write the given set in set builder form {5,25,125,625}
22. Prove that, if 𝐴 ∪ 𝐵 = 𝐶 and 𝐴 ∪ 𝐵 = 𝜙 then⁡𝐴 = 𝐶 − 𝐵.
23. If⁡𝑈 = {𝑥: 𝑥 ≤ 10, 𝑥 ∈ 𝑁}, 𝐴 = {𝑥: 𝑥 ∈ 𝑁, 𝑥⁡𝑖𝑠⁡𝑝𝑟𝑖𝑚𝑒}, 𝐵 = {𝑥: 𝑥 ∈ 𝑁, 𝑥⁡𝑖𝑠⁡𝑒𝑣𝑒𝑛},
write 𝐴 ∩ 𝐵′ in roster form.
24. 𝑥+5 4𝑥−40
Let⁡𝑇 = {𝑥: 𝑥−7 − 5 = }. Is T an empty set? Justify your answer.
13−𝑥
25. Let 𝑓, 𝑔: 𝑅 → 𝑅 be defined respectively by 𝑓 (𝑥 ) = 𝑥 + 1 and𝑔(𝑥 ) = 2𝑥 − 3. Find 𝑓 +
𝑔, 𝑓 − 𝑔, 𝑓𝑔.
26. 3−4𝑖
Express (4−2𝑖)(1+𝑖)⁡ in 𝑎 + 𝑖𝑏.

𝑥−1 𝑦−1
27. Find the real values of 𝑥⁡and 𝑦 for which 3+𝑖 + 3−𝑖 = 𝑖
28. For complex values of 𝑧, solve |𝑧| + 𝑧 = (2 + 𝑖).
29. 1+𝑖
If 𝑎 + 𝑖𝑏 = √1−𝑖, then prove that 𝑎2 + 𝑏2 = 1.
30. 𝑧−5𝑖
If |𝑧+5𝑖| = 1 , show that 𝑧 is a real number.
31. Simplify 3(1 − 2𝑖 ) − (−4 − 5𝑖 ) + (−8 + 3𝑖)
32. If 𝑧 = √2 − √−3, find 𝑅𝑒(𝑧), 𝐼𝑚(𝑧), 𝑧̅⁡𝑎𝑛𝑑⁡|𝑧|.
 Class-XI APPLIED MATHEMATICS (2024-25)
Holiday Homework Worksheet
Revision worksheet for PT02
1. A bucket made up of a metal sheet is in the form of frustum of a cone. Its depth is 24
cm and the top and bottom diameters are 30 cm and 10 cm respectively. Find the cost of
milk which will fill the bucket at the rate Rs. 20 per litre and cost of metal sheet used if it

costs Rs. 10 per 100 cm2.

2. A solid consisting of a right circular cone standing on a hemisphere, is placed upright
in a right circular cylinder, full of water and touches the bottom. Find the volume of
water left in the cylinder having given that the radius of the cylinder is 3cm and its
height is 6cm. The radius of hemisphere is 2cm and the height of the cone is 4cm. Give

your answer to the nearest cubic centimeters.

3. A farmer connects a pipe of internal diameter 20cm from a canal into a cylindrical
tank in his field which is 10m in diameter and 2m deep. If water flows through the pipe
at the rate of 3 km/h, in how much time will the tank be filled?
4. A cone of radius 10cm divided into two parts by drawing a plane through the mid-
point of its axis, parallel to its base. Compare the volume of the two parts.

5. A tent is in the shape of a cylinder surmounted buy a conical top. If the height and
diameter of the cylindrical part are 2.1 m and 4 m respectively and the slant height of
the top is 2.8 m, find the area of the canvas used for making the tent. Also, find the cost
of the canvas of the tent at the rate of Rs. 500 per m2. (Note that the base of the tent will
not be covered with canvas.)

6. From a solid cylinder whose height is 2.4 cm and diameter 1.4 cm, a conical cavity of
the same height and same diameter is hollowed out. Find the total surface area of the
2
remaining solid to the nearest cm .

7. A wooden article was made by scooping out a hemisphere from each end of a solid
cylinder as shown in figure. If the height of the cylinder is 10 cm and its base is of radius
3.5 cm, find the total surface area of the article.

8. he area of an equilateral is 1732.5 cm2 with each centre of the triangle as

vertex of circle is drawn with radius equal to half the length of the side of triangle, find

the area of the shaded region.

9. Three horses are tethered with 7m long ropes at the three corners of a triangular field
having sides 20m, 34m and 42 m. Find the area of the plot which can be grazed by the
horses. Also, find the area of the plot which remains ungrazed.

10. In given figure, two circular flower beds have been shown on two sides of a square
lawn ABCD of side 56m. If the corner of each circular flower bed is the point of enter
section O of the diagonals of the square lawn. Find the sum of the areas of the lawn and
the flower beds.

11. The average of 19 observations is 54. If the average of first 10 observations is 56 and
that of last 10 observations is 53 . Find the tenth observation.
12. Saturday fell on which dates of May 1999.
13. If 10 June 1948 was Thursday , what will be the day on 16 November 1969 ?
14. A watch loses 3 seconds in 2 minutes and was set right at 8:00a.m. What is the
correct time if it shows 9 :00 in the evening on the same day?
15. baban and Rasmukh together erect a shed in 12 days. Baban alone can do it in 20
days. How much time would Ramsukh take working alone to erect the shed?
16.Aman shall be 45 minutes late to reach his office If he walks from his house at 4
km/h. He shall be 30 minutes early if he walks at 6km/h. Find the distance between his
house and office.
17. A man rides at 40 Km/h for the first 3 hours and 60 km/h for the next 3 hours. Find
his average speed.
Read the following information carefully and answer the questions given below it :
Seven friends A,B,C,D, E,F and G are playing cards sitting around a circular table facing
towards center. F is second to the right of G . B is the neighbour of F but not of C . E is the
neighbour of C and sits fourth at the right of G . D is between E and A.
18.Write the seating arrangement.
19. Who is fourth to the left of G?
20. Who are the neighbours of B ?

PROJECT: Prepare a PPT on any utility Bill given below, explaining all the tariff rates and
charges. Kindly refer to Chapter-16 UTILITY BILLS of the Reference book ML Aggarwal
for this work.
i) Water Bill
ii) Electricity Bill
iii) Piped natural gas bill
(This will be considered an internal assessment activity for half yearly examination)
 CLASS- XI BIOLOGY (044)
HOLIDAY HOMEWORK (2024-2025)
______________________________________________________________________________________________

Biology is a natural science discipline that studies living things. It is a very large and
broad field due to the wide variety of life found on Earth.
To manage biological data, 21st century biology will integrate discovery science,
systems biology, and the empirical tradition of biological science and provide a
quantitative framework within which the results of efforts in each of these areas
may be placed.

1) Prepare a working project on any one of the following topic :

• Dealing with Diabetes: The Road to Developing an Artificial Pancreas
• Make an Automatic Pill Dispenser
• Effects Of Mobile Radiation On Living Tissue
• Rotating DNA model
• Human blood circulatory system or any other organ system
• Hemodialysis working model science project for exhibition
2) Prepare an investigatory project on any one of the topics given in the list
provided.

S.No. PROJECT TOPIC SKILLS

PROJECT (CHOOSE ANY ONE TOPIC) – • Excellent written
1. Jaundice communication skills.
2. Schizophrenia • Logical thinking skills.
3. Osteoarthritis • Motor skills.
4. COPD (Chronic obstructive pulmonary • Initiating skills
disorders) • Creativity skills
5. Renal calculi
6. IBD (Inflammatory bowel diseases)
7. Polycystic ovarian syndrome
8. Endometriosis
9. Angina pectoris
10. Asthma

GENERAL INSTRUCTIONS FOR THE STUDENTS:

• STUDENTS SHOULD COMPLETE THE PROJECT WITHIN 10-15 PAGES.
• FIRST FOUR PAGES OF THE PROJECT (COVER PAGE, CERTIFICATE, and
ACKNOWLEDGEMENT& CONTENT) SHOULD BE INSERTED IN THE PROJECT IN PRINTED
FORM.
• THE BODY OF THE PROJECT CAN BE HAND WRITTEN OR PRINTED.
• PHOTOGRAPHS, DIAGRAMS, CHARTS, TABLES, GRAPHS CAN BE DRAWN AS WELL AS CAN
BE PASTED.
• HARDCOPY OF THE PROJECT NEED TO BE SUBMITTED WITHIN PROPER FILE AFTER
REOPENING THE SCHOOL.
• EACH & EVERY PAGE SHOULD BE CONTAINING MARGININ ALL SIDES.NO DECORATION IS
NEEDED FOR THIS PROJECT.
• ALWAYS USE RIGHT HAND SIDE PAGE FOR WRITING & LEFT ONE CAN BE USED FOR
PASTING OR DRAWING THE DIAGRAMS, GRAPHS, PICTURES, CHARTS, and FLOW CHARTS
& TABLES ETC.
• CASE STUDY INCORPORATION IN THE PROJECT IS MANDATORY FOR EVERY PROJECT
TOPIC.

FORMAT FOR THE PROJECT

1. COVER PAGE:
2. CERTIFICATE OF APPROVAL:
3. ACKNOWLEDGEMENT:
5. INDEX/CONTENT:
6. BODY OF PROJECT: THIS MUST VARY FROM TOPIC TO TOPIC.
7. CASE STUDY: THIS POINT SHOULD BE WRITTEN WITHIN 1-2 PAGES.TRY TO GIVE REAL
DATA/INFORMATION UNDER THIS POINT.
8. REFERENCES: HERE YOU CAN WRITE THE BOOKS NAMES FROM WHERE YOU HAVE GATHERED
INFORMATIONS AS WELL AS YOU CAN ADD WEBSITES/LINKS ALSO.
 HOLIDAY H.W(Session-2024-2025)
Class- XISUB- CHEMISTRY
Chapter - Some Basics Principles of Chemistry

QuestionNo. 1 to5 are based onthe given text.Read the text carefullyand answer the questions:
Chemistry developed mainly in the form of Alchemy and Iatrochemistry during 1300-1600 CE. Modern chemistry took
shapein18thcenturyEurope.Chemistrycontributesinabigwaytothenationaleconomy.Italsoplaysanimportantrolein meeting
human needs for food, healthcare products, and other material aimed at improving the quality of life anything which has
mass and occupies space is called matter. Everything around us, for example, a book, pen, pencil, water, air, all
livingbeings,etc.,arecomposedofmattercanexistinthreephysicalstatesviz.solid,liquidandgas.Particlesareheldvery close to
each other in solids in an orderly fashion and there is not much freedom of movement. In liquids, the particles are close to
each other but they can move around. However, in gases, the particles are far apart as compared to those present in solid or
liquid states and their movement is easy and fast. Because of such arrangement of particles.

1. Which of the following is an anta-acid?

a) Eno b)Milk of Magnesia

c)All of the above d)Sodium Bicarbonate

2. completely occupy the space in the container in which they are placed.

a) Liquid b)Gases

c)Solid and liquid both d)Solid

3. Which of the following statements is incorrect?
I. Methane is greenhouse gas
II. CFCs responsiblefor ozone depletion in the stratosphere
III. AZTis veryeffective incancer therapy
IV. Chemistry doesn't play a major role in the growth of nation

a) III and IV b)III and I

c)I and II d)II and IV

4. The process of conversion of solid directly into Gas?

a) Sublimation b)Condensation

c)Evaporation d)Melting
5. Which of the following is the incorrect match?
 Column A Column B

a. Solid change in liquid on heating

b. Liquid change into gas on heating

c. Gas change into liquid on heating

d. Liquid change to solid on cooling

a) b b)d

c)a d)c

6. Molality of an aqueous solution is 10 mol kg-1. The mole fraction of solute in the solution is .

a) 0.15 b)0.75

c)0.85 d)0.55
7. 3.0molalNaOH solutionhas adensity of1.110 g/mL.The molarityof thesolution is:

a) 2.9732 M b)3.64 M

c)3.05 M d)3.0504 M
8. Assertion(A):Element canformdifferent compound.
Reason (R):Element is the pure form of a substance containing the same kind of atoms.

a) BothAandRaretrueandRisthecorrect b) BothAandRaretruebutRisnotthe
explanation of A. correct explanation of A.

c) A is true but R is false. d)A is false but R is true.

9. Assertion (A):The molality of the solution does not change with change in temperature.
Reason (R):The molality is expressed in units of moles per 1000 gm of solvent.

a) BothAandRaretrueandRisthecorrect b) BothAandRaretruebutRisnotthe
explanation of A. correct explanation of A.

c) A is true but R is false. d)A is false but R is true.

10. Assertion (A):A reactant that is entirely consumed when a reaction goes to completion is known as a limiting reactant.
Reason (R):The amount of limiting reactant limits the amount of product formed.

a) BothAandRaretrueandRisthecorrect b) BothAandRaretruebutRisnotthe
explanation of A. correct explanation of A.

c) A is true but R is false. d)A is false but R is true.

11. Assertion (A):Molecular weight of a compound is 44 if its vapour density is 22.
Reason(R):Vapourdensity ×2=Molecularweight.

a) BothAandRaretrueandRisthecorrect b) BothAandRaretruebutRisnotthe
explanation of A. correct explanation of A.

c) A is true but R is false. d)A is false but R is true.

 12. Whatistheconcentrationofsugar(C12H22O11)inmolL-1 ifits20garedissolvedinenoughwatertomakeoffinal volume up
to 2 L?
13. Calculate the molecular mass of the following.
i. H2O
ii. CO2
iii. CH4

14. If4gofNaOHdissolvesin36gofH2O,calculatethemolefractionofeachcomponentinthesolution.Also,determine the molarity

of solution (specific gravity of solution is 1g mL–1).

15. Calculate the number of moles in the following.
i. 7.85 g of iron
ii. 4.68 mg of silicon
iii. 65.6 ug of carbon
16. Calciumcarbonatereactswithaq.HClaccordingtothereaction
CaCO3 (s)+2HCl(aq)⟶CaCl2 (aq)+CO2 (g)+H2O(l)
What mass of CaCO3is required to react completely with 25 mL of 0.75 M HCl?

Chapter- Structure of Atom

QuestionNo. 1 to4 are based onthe given text. Readthe text carefully andanswer the questions:
In 1830, Michael Faraday showed that if electricity is passed through a solution of an electrolyte, chemical
reactionsoccurred at the electrodes, which resulted in the liberation and deposition of matter at the electrodes. In the mid-
1850sFaraday began to study electrical discharge in partially evacuated tubes, known as cathode ray discharge tubes.
Whensufficientlyhighvoltageisappliedacrosstheelectrodes,currentstartsflowingthroughastreamofparticlesmovinginthetube
from the negative electrode to the positive electrode. These were called cathode rays or cathode ray particles. J.J.Thomson
measured the ratio of electrical charge (e) to the mass of the electron (me) by using a cathode ray tube andapplying electrical
and magneticfields perpendicular to eachother as wellas to the pathof electrons. Positivelychargedparticle was characterised
in 1919. Later, a need was felt for the presence of electrically neutral particles as one of theconstituents of the atom.

1. Whatis the value of charge tomass ratio (e/m) of electrons?

2. How is it concluded that electrons are a universal constituent of all matter?
3. Which fundamental property of an atom is not understood if we assume that an atom consists of a nucleus
containingprotons only and an extranuclear part containing an equal number of electrons?
4. Calculate the total no. of electrons present in one mole of methane.
5. An atom of an element contains 29 electrons and 35 neutrons. The electronic configuration of an

elementa)1s22s22p63s23p64s13d10 b)1s22s22p63s23p4s23d64s24p2

c)1s22s22p63s23p54s13d94s2 d)1s22s22p63s23p4s23d84s2

6. Mg2+isisoelectronicwith:

a) Cu2+ b)K+

c)Zn2+ d)Na+
 7. Assertion (A):Helium and beryllium having the similar outer electronic configuration of type ns2.
Reason (R):Both are chemically inert.

a) BothAandRaretrueandRisthecorrectexplanation of A.

b) Both A and R are true but R is not thecorrect explanation of A.

c) A is true but R is false. d)A is false but R is true.

8. Assertion(A): TheenergyofquantumofradiationisgivenbyE=hν.
Reason(R):Quantumintheenergyequationsignifiestheprincipal quantumnumber
a).BothAandRaretrueandRisthecorrectexplanation of A.
b)Both A and R are true but R is not thecorrect explanation of A.

c)A is true but R is false. d)A is false but R is true.

9. Anionwithmassnumber56contains3unitsofpositivechargeand30.4%moreneutronsthanelectrons.Assignsymbolto the ion.

10. Using s, p and d notations, describe the orbitals with following quantum numbers
:a.n = 1, l = 0
b. n = 4, l = 3
c.n = 3, l = 1
d. n = 4, l = 2
11. Distinguish between a photon and quantum.
12. Write the electronic configurationof (i) Mn4+, (ii)Fe3+(iii)Cr2+and(iv) Zn2+. Mentionthe number of
unpairedelectrons in each case.
13. State and explain the following:
i. Aufbau principle
ii. Pauli exclusion principle
iii. Hund'sruleofmaximummultiplicity.

14. i.Calculatetheuncertaintyinthepositionofanelectroniftheuncertaintyinitsvelocityis5.7×105ms-1.(h=6.6×
10-34Jsandmassofelectron=9.1×10-31kg)
ii.Calculatetheuncertaintyinthevelocityinawaggonofmass2000kgwhosepositionisknowntoanaccuracyof±
10 m.
 Class-XI
Physics HHW Worksheet
Section A

1 Assertion(A): A particle starting from rest achieves a velocity 5 m/safter traversing 2.5 m/s [1]
with an acceleration 5 m/s 2 .
Reason (R): Final velocity (v m/s) of a particle after traversing xmetre, whose initial velocity is
1
u m/s and acceleration a m/s 2 , is given by v = √𝑢2 + 2 𝑎𝑥 .

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

2 Assertion (A): Distance - time graph of the motion of a body having uniformly accelerated [1]
motion is a straight line inclined to the time axis.
Reason (R): Distance travelled by a body having uniformly accelerated motion is directly
proportional to the square of the time taken.

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

3 Assertion: The driver in a vehicle moving with a constant speed on a straight road is an inertial [1]
frame of reference.

Reason: A reference frame in which Newton’s laws of motion are applicable is non - inertial.

a) If both assertion and reason are true and the reason is the correct explanation of assertion.

b) If both assertion and reason are true but the reason is not the correct explanation of
assertion.

c) If the assertion is true but the reason is false.

d) If both assertion and reason are false.

4 Assertion (A): A body falling freely may do so with constant velocity. [1]
 Reason (R): The body falls freely when the acceleration of a body is equal to the acceleration
due to gravity.

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

5 Assertion (A): If 𝑃⃗ ⋅ 𝑄
⃗ = |𝑃⃗ × 𝑄 ⃗ is 𝜋 .
⃗ | , then angle between 𝑃⃗ and 𝑄 [1]
2
𝜋
Reason (R): If angle between 𝑃⃗ and 𝑄
⃗ is , then dot product is zero.
2

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

6 Assertion (A): The path of one projectile as seen from another projectile is a striaght line. [1]
Reason (R): Relative acceleration of one projectile w.r.t. another projectile is zero.

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

7 ⃗ × ⃗𝐁
Assertion (A):𝐀 ⃗ is perpendicular to 3𝐀
⃗ − 4𝐁
⃗ . [1]

⃗ × ⃗𝐁 is perpendicular to the plane containing 𝐀

Reason (R): The direction of 𝐀 ⃗ and ⃗𝐁 .

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

d) A is false but R is true.

8 Assertion (A): Vector addition is commutative. [1]

⃗ ) ≠ (𝐵
Reason (R):(𝐴 + 𝐵 ⃗ + 𝐴)

a) Both A and R are true and R is the correct explanation of A.

b) Both A and R are true but R is not the correct explanation of A.

c) A is true but R is false.

 d) A is false but R is true.

Section B

9 The instantaneous speed is always equal to the magnitude of instantaneous velocity. Why? [2]
10 The relation between t and distance x is t = ax2 + bx where a and b are constants. Express the [2]
instantaneous acceleration in terms of instantaneous velocity.
11 From the top of a tower 100 m in height a ball is dropped and at the same time another ball is [2]
projected vertically upwards from the ground with velocity of 25 ms−1 . Find when and where
the two balls will meet. Take g = 9.8 ms −2 .
12 In which of the following examples of motion can the body be considered approximately a point [2]
object:

1. a railway carriage moving without jerks betweentwo stations,

2. a monkey sitting on the top of a man cycling smoothly on a circular track,

3. a spinning cricket ball that turns sharply on hitting the ground, and

4. tumbling beaker that has slipped off the edge of a table?

13 A cyclist moving on a circular track of radius 100 m completes one revolution in 4 minutes. [2]
What is his

1. average speed

2. average velocity in one full revolution?

14 A football is kicked into the air vertically upwards. What is its [2]
1. acceleration?

2. velocity at the highest point?

15 A cyclist is riding with a speed of 27 kmh−1 . As he approachesa circular turn on the road of [2]
radius 80 m, he applies brakes and reduces his speed at the constant rate of 0.5 ms −2 . What is
the magnitude and direction of the net acceleration of the cyclist on the circular turn?
16 The position of a particle is given by r = 3.0t 𝑖̂ - 2.0t 2 𝑗̂ + 4.0 𝑘̂ m where t is in seconds and the [2]
coefficients have the proper units for r to be in metres?

1. Find the v and a of the particle?

2. What is the magnitude and direction of velocity of the particle at t = 2.0 s?

17 Establish the |a + b|≤ |a| + |b| vector inequalities geometrically or otherwise.When does [2]
thisequality sign apply?
18 The dot product of two vectors vanishes when vectors are orthogonal and has maximum value [2]
when vectors are parallel to each other. Explain.
Section C

19 A police jeep on a patrol duty on national highway was moving with a speed of 54km/hr. It [3]
finds a thief rushing up in a car at a rate of 126km/hr in the same direction. Police sub -
inspector fired at the car of the thief with his service revolver with a muzzle speed of 100m/s.
 With what speed will the bullet hit the car of thief?
20 Two buses A and B are at positions 50 m and 100 m from the origin at time t = 0. They start [3]
moving in the same direction simultaneously with a uniform velocity of 10 ms−1 and 5 ms −1 .
Determine the time and position at which A overtakes B.
21 An object is moving along +ve x - axis with a uniform acceleration of 4 ms . At time t = 0, x = 5
−2
[3]
m and v = 3 ms −1 .

1. What will be the velocity and position of the object at time t = 2 s?

2. What will be the position of the object when it has a velocity of 5 ms−1 ?

22 Figure gives the x - t plot of a particle executing one - dimensional simple harmonic motion. [3]
Give the signs of position, velocity and acceleration variables of the particle at t = 0.3 s, 1.2 s, -
1.2 s.

23 Suggest a suitable physical situation for each of the following graphs: [3]

1.

2.

3.
24 Show that two dimensional uniform velocity motion is equivalent to two one dimensional [3]
uniform velocity motion along two coordinate axes.
25 The greatest and the least resultant of two forces acting at a point are 29 N and 5 N, [3]
respectively. If each force is increased by 3 N. Find the resultant of two new forces acting at a
right angle to each other.
26 A cricket ball is thrown at a speed of 28 m s in a direction 30 above the horizontal. Calculate
−1
[3]
1. the maximum height

2. the time taken by the ball to return to the same level and

3. the distance from the thrower to the point where the ball returns to the same level.

27 A target is fixed on the top of a pole 13 metre high. A person standing at a distance of 50 metre [3]
from the pole is capable of projecting a stone with a velocity10√𝑔𝑚𝑠 −1 . If he wants to strike
 the target in shortest possible time, at what angle should he project the stone?
28 At what point of projectile motion (i) potential energy maximum (ii) Kinetic energy maximum [3]
(iii) total mechanical energy is maximum?
Section D

29 Figure shows the distance - time graphs of two trains, which start moving simultaneously in [5]
the same direction. From the graphs, find:

1. How much ahead of A is B when the motion starts?

2. What is the speed of B?

3. When and where will A catch B?

4. What is the difference between the speeds of A and B?

30 A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 [5]
kmh−1 . Finding the market closed, he instantly turns and walks back home with a speed of 7.5
km/h.What is the

1. magnitude of average velocity, and

2. the average speed of the man over the interval of time

a. 0 to 30 min,

b. 0 to 50 min,

c. 0 to 40 min?
We have carefully distinguished between average speed and magnitude of average velocity. No
such distinction is necessary when we consider instantaneous speed and magnitude of velocity.
The instantaneous speed is always equal to the magnitude of instantaneous velocity. Why?

31 A juggler maintains four balls in motion, making each in turn rise to a height of 20 m from his [5]
hand. With what velocity does he project them and where will the other three balls be at the
instant when the fourth one is just leaving the hand? Take g = 10 ms−2 .
 Class XI B1, B2, B3
Holiday Homework
Physics and Chemistry

I -Investigatory Projects assigned to students

An investigatory project is basically any science experiment where you start with an issue or
problem and conduct research or an investigation to decide what you think the outcome
will be. Doing an investigatory project is considered as a major achievement of any student
in Science. Through scientific investigation, they learn how to apply the acquired knowledge,
scientific concepts, theories, principles and laws of nature. They can use their higher-
order process or thinking skills in conducting a research. By the end of an investigatory
project, students gain valuable knowledge, not only from an academic perspective, but have
learned higher-level thinking, processing, and analytical skills.

Steps for Scientific Investigation

One project is assigned to each student roll number wise from the below mentioned list.

criteria that students should follow when writing a project report:

Clarity and organization:

1. The report should be well-organized with clear headings and subheadings.

2. Each section should flow logically from one to the next, aiding the reader's understanding.

Language and Style:

1. Use clear, concise, and grammatically correct language.

2. Ensure that the report is visually appealing with appropriate use of formatting, fonts, and spacing.
3. Use visuals such as charts, graphs, or images where necessary to enhance understanding

Project report should include following headings:

1. Title Page:

 School logo
 Title of the project
 Student's name
 Class and section
 Subject
 School name
 Roll No. (Board roll no.)- keep it blank
2. Certificate
3. Acknowledgements
 Gratitude towards anyone who provided assistance or support during the
project.
4. Abstract:
 A brief summary of the project objectives, methods, results, and conclusions.
5. Introduction:
 Background information on the topic of the project.
 Objectives of the project.
6. Theory
 Discussion of key concepts and theories related to the project.
7. Methodology:
 Description of the experimental setup or procedures followed in the project.
 Explanation of the materials and equipment used.
 Details of any measurements or observations made during the experiment.
8. Data and Results:
 Presentation of the data collected during the experiment.
 Analysis of the results obtained.
 Interpretation of any trends or patterns observed.
9. Discussion:
 Discussion of the significance of the results in relation to the project objectives.
 Comparison with theoretical expectations or existing knowledge.
 Explanation of any discrepancies or unexpected findings.
10. Conclusion:
 Summary of the key findings and conclusions drawn from the project.
 Reflection on the overall success of the project in achieving its objectives.
 Suggestions for future research or areas of further investigation.
11. References:
 List of all sources cited in the project, following a consistent citation style.

Roll. No. Project

1 Bio-diesels: Step closer to cleaner fuel

2
Future with LEDs : Energy savings with LED lighting
3
Hybrid renewable energy systems: future of energy demand
4
Renewables and batteries: a natural combination
5
Green hydrogen mobility : future of mobility
6
Modern bio- Energy and it's growing international trend
7
Affordable power transmission: Myth or Reality
8
Emerging technologies in renewable energies
9
Decarbonisation: A hype or real need
10
Energy efficiency: Whether India moving in right direction or not?
11
Bio-diesels: Step closer to cleaner fuel
12
Future with LEDs : Energy savings with LED lighting
13
Hybrid renewable energy systems: future of energy demand
14
Renewables and batteries: a natural combination
15
Green hydrogen mobility : future of mobility
16
Modern bio- Energy and it's growing international trend
17
Affordable power transmission: Myth or Reality
18
Emerging technologies in renewable energies
19
Decarbonisation: A hype or real need
20
Energy efficiency: Whether India moving in right direction or not?
21
Bio-diesels: Step closer to cleaner fuel
22
Future with LEDs : Energy savings with LED lighting
23
Hybrid renewable energy systems: future of energy demand
 24
Renewables and batteries: a natural combination
25
Green hydrogen mobility : future of mobility
26
Modern bio- Energy and it's growing international trend
27
Affordable power transmission: Myth or Reality
28
Emerging technologies in renewable energies
29
Decarbonisation: A hype or real need
30
Energy efficiency: Whether India moving in right direction or not?
31
Bio-diesels: Step closer to cleaner fuel
32
Future with LEDs : Energy savings with LED lighting
33
Hybrid renewable energy systems: future of energy demand
34
Renewables and batteries: a natural combination
35
Green hydrogen mobility : future of mobility

II –Practicals to be written in practical file

Experiment-1: To measure diameter of a small spherical/cylindrical body using Vernier
Callipers and hence find its volume.

Experiment-2: To measure internal diameter and depth of a given beaker/calorimeter using

Vernier Callipers and hence find its volume.

Experiment-3: To measure diameter of a given wire and thickness of a given sheet using
screw gauge.

Experiment-4: Using a simple pendulum, plot its L-T2 graph and use it to find the
acceleration due to gravity.

III –Worksheet to be done in class notebook

Worksheet is attached separately.
 CENTRAL BOARD OF SECONDARY EDUCATION

GAURS INTERNATIONAL SCHOOL,

GREATER NOIDA WEST

A PRACTICAL RECORD FILE IS SUBMITTED TO DEPARTMENT OF COMPUTER SCIENCE FOR THE

PARTIAL FULLFILLMENT OF AISSCE EXAMINATION FOR THE ACADEMIC SESSION: 2024-25

SUBMITTED BY: [NAME OF STUDENT]

PGT (CS): MS.RAMANPREET KAUR

CLASS: XI

ROLL NO: __________

 ACKNOWLEDGEMENT

I wish to express my deep sense of gratitude and

indebtedness to our learned teacher Ms. Ramanpreet
Kaur, PGT Computer Science, Gaurs International
School for her invaluable help, advice and guidance in
the preparation of this project.

I am also greatly indebted to our principal Ms. Rachna

Babbar and school authorities for providing me with
the facilities and requisite laboratory conditions for
making this practical file.

I also extend my thanks to a number of teachers, my

classmates and friends who helped me to complete this
practical file successfully.

[Name of Student]
 CERTIFICATE

This is to certify that [Name of Student], student of Class

XI, Gaurs International School has completed the

practical file during the academic year 2024-25 towards

partial fulfillment of credit for the Computer Science

practical evaluation of CBSE AISSCE-2024. The report

submitted has been found satisfactory and was

compiled under my supervision in the following pages.

Internal Examiner

Date: School Seal Principal

 CONTENTS
PRACTICAL FILE
S.No DESCRIPTION Page
No

1 Write a Python program to convert temperature in degree Celsius to degree Fahrenheit. If

water boils at 100 degree C and freezes at 0 degree C, use the program to find out what is
the boiling point and freezing point of water on the Fahrenheit scale.
T(°F) = T(°C) × 9/5 + 32

2 Write a Python program to calculate the amount payable if money has been lent on simple
interest. Principal or money lent = P, Rate of interest = R% per annum and Time = T years.
Then Simple Interest (SI) = (P x R x T)/ 100. Amount payable = Principal + SI. P, R and
T are given as input to the program.

3 Write a program to calculate in how many days a work will be completed by three persons
A, B and C together. A, B, C take x days, y days and z days respectively to do the job
alone. The formula to calculate the number of days if they work together is xyz/(xy + yz +
xz) days where x, y, and z are given as input to the program.

4 Write a program to enter two integers and perform all arithmetic operations on them.

5 Write a program to swap two numbers using a third variable.

6 Write a program to input a number and check whether it is positive, negative or zero.

7 Write a program to find average of three numbers.

8 WAP to enter Total Bill amount and calculate discount as per given table and also calculate
Net payable amount (total bill – discount)
Total Bill Discount
>=20000 15% of Total Bill
>=15000 10% of Total Bill
>=10000 5% of Total Bill
otherwise 0 of Total Bill
9 WAP to enter any number and check it is even or odd

10 Write a program to display a menu for calculating area of circle or perimeter of the circle.

11 WAP to input any year and check it is Leap Year or Not.

12 WAP to enter 3 number and print the largest number

 Holiday Homework
Session- 2024-25
Physical Education
Class- XI

• Practical File: file shall include-:

 Labelled diagram of 400m track & field with
computations.
 Describe changing trends in sports & games in
terms of changes in playing surface, wearable
gears, equipment, technological advancement.
 Labelled diagram of field & equipment of any one
IOA recognized Sport/Game of choice.
 Any one IOA recognized sports/games of choice.
Labelled diagram of field & equipment. Also
mention its rules, terminologies & skills.
 CENTRAL BOARD OF SECONDARY EDUCATION

GAURS INTERNATIONAL SCHOOL,

GREATER NOIDA WEST

A PRACTICAL RECORD FILE IS SUBMITTED TO DEPARTMENT OF COMPUTER SCIENCE FOR THE

PARTIAL FULLFILLMENT OF AISSCE EXAMINATION FOR THE ACADEMIC SESSION: 2024-25

SUBMITTED BY: [NAME OF STUDENT]

PGT (CS): MS.RAMANPREET KAUR

CLASS: XI

ROLL NO: __________

 ACKNOWLEDGEMENT

I wish to express my deep sense of gratitude and

indebtedness to our learned teacher Ms. Ramanpreet
Kaur, PGT Computer Science, Gaurs International
School for her invaluable help, advice and guidance in
the preparation of this project.

I am also greatly indebted to our principal Ms. Rachna

Babbar and school authorities for providing me with
the facilities and requisite laboratory conditions for
making this practical file.

I also extend my thanks to a number of teachers, my

classmates and friends who helped me to complete this
practical file successfully.

[Name of Student]
 CERTIFICATE

This is to certify that [Name of Student], student of Class

XI, Gaurs International School has completed the

practical file during the academic year 2024-25 towards

partial fulfillment of credit for the Computer Science

practical evaluation of CBSE AISSCE-2024. The report

submitted has been found satisfactory and was

compiled under my supervision in the following pages.

Internal Examiner

Date: School Seal Principal

 CONTENTS
PRACTICAL FILE
S.No DESCRIPTION Page
No

1 Write a Python program to convert temperature in degree Celsius to degree Fahrenheit. If

water boils at 100 degree C and freezes at 0 degree C, use the program to find out what is
the boiling point and freezing point of water on the Fahrenheit scale.
T(°F) = T(°C) × 9/5 + 32

2 Write a Python program to calculate the amount payable if money has been lent on simple
interest. Principal or money lent = P, Rate of interest = R% per annum and Time = T years.
Then Simple Interest (SI) = (P x R x T)/ 100. Amount payable = Principal + SI. P, R and
T are given as input to the program.

3 Write a program to calculate in how many days a work will be completed by three persons
A, B and C together. A, B, C take x days, y days and z days respectively to do the job
alone. The formula to calculate the number of days if they work together is xyz/(xy + yz +
xz) days where x, y, and z are given as input to the program.

4 Write a program to enter two integers and perform all arithmetic operations on them.

5 Write a program to swap two numbers using a third variable.

6 Write a program to input a number and check whether it is positive, negative or zero.

7 Write a program to find average of three numbers.

8 WAP to enter Total Bill amount and calculate discount as per given table and also calculate
Net payable amount (total bill – discount)
Total Bill Discount
>=20000 15% of Total Bill
>=15000 10% of Total Bill
>=10000 5% of Total Bill
otherwise 0 of Total Bill
9 WAP to enter any number and check it is even or odd

10 Write a program to display a menu for calculating area of circle or perimeter of the circle.

11 WAP to input any year and check it is Leap Year or Not.

12 WAP to enter 3 number and print the largest number