GT-2 Question Paper
GT-2 Question Paper
2023
Time: 3.20 Hrs GT-2 Max.Marks: 720
Important Instructions:
In every subject:
(a) In Section – A, 35 questions will be given. Answer all 35 questions from section – A
(b) In Section – B, 15 questions will be given. Out of which Answer 10 questions only.
(c) Each question carries 4 marks. For each correct response will get 4 marks. For each
incorrect response, one mark will be deducted from the total scores.
PHYSICS
SECTION – A
A − x2
1. If energy of a body moving along x-axis at time ‘t’ and position ‘x’ is given by E = , then the
Bt
dimensions of AB will be
1) [M–1 L2 T1] 2) [M L T–2] 3) [M–1 L3 T–2] 4) [M L–3 T–2]
2. A particle performs SHM on x-axis with amplitude A and time period T. At t = 0 particle starts from
A
rest, then time taken by it to travel a distance will be
4
1)
T
16
2)
T
16
( )
cos −1 3
4 3)
T
2
( )
cos −1 3
4 4)
T
2
cos −1 1 ( )
4
3. A honey bee is flying along straight line (x-axis) according to the equation x = + t 2 where
= 5 cm and = 8cm / s 2 . Its acceleration when velocity of honey bee is 18 m/s, is
1) 8 cm/s2 2) 16 cm/s2 3) 4 cm/s2 4) zero
4. A string is rigidly tied at two ends and its equation of vibration is given by y = cos2t sin 2 x .
The minimum length of the string is
1)1 m 2)0.5 m 3) 5 m 4) 2 m
5. The majority charge carriers in P-type semiconductor are
1) Holes 2) Electrons 3) Protons 4) Neutrons
0
6. A particle is projected from ground at an angle of 60 above the horizontal with speed 150 m/s. The
time (in second) after which particle is moving at an angle 450 with vertical, is
15 15
1) 15( 3 + 1) 2) ( 3 − 1) 3) 15( 3 + 1) 4) ( 3 + 1)
2 2
7. A large tank filled with water to a height ‘h’ is to be emptied through a small hole at the bottom. The
h h
time taken for the level of water to fall from h to is T1 and to fall from to zero is T2. The value
2 2
T
of 1 is
T2
1 1
1) 2 2) 2 −1 3) 4)
2 −1 2
Pg. 1
8. A convex lens of glass ( =1.5) having focal length f = 15 cm is dipped completely in water. Focal
4
length of convex lens in water becomes
water =
3
1) 60cm 2) 15cm 3) – 60m 4) 30 cm
9. The internal resistance of a cell of 2.1 V which gives a current of 0.2 A through a resistance of 10
is
(1) 0.8 (2) 1.0 (3) 0.2 (4) 0.5
10. Statement-I: Gravitational torque due to weight of a body about its centre of gravity is zero.
Statement-II: In the absence of external torque the angular momentum of a body changes.
1) Statement-I is true and Statement-II is false
2) Statement-I is false and Statement-II is true
3) Both S-I and S-II are true
4) Both S-I and S-II are false.
11. The electric potential V(x) in a region around the origin is given by v(x) = 4x volts. The electric
charge enclosed in a cube of 1 m side with its centre at the origin, will be
1) 8 0 2) −4 0 3) −8 0 4) Zero
12. Three rods made of the same material and having the same cross section have been joined as shown
in the figure. Each rod is of the same length. The left and right ends are kept at 0ºC and 90ºC
respectively. The temperature of the junction of the three rods will be
Pg. 2
18. The heat produced in a given resistor in a given time by the sinusoidal current I0 sin t will be the
same as that by a steady current of magnitude
I I
1) 0 2) I 0 3) 2I 0 4) 0
2 2
19. In the figure given below, the correct relation between acceleration a1, a2 and a3 is
3g 6g 3g 6g
1) sin ( / 2) 2) sin ( / 2) 3) cos ( / 2) 4) cos ( / 2)
l l l l
Pg. 3
25. Three blocks A, B and C, of masses 4 kg, 2kg and 1 kg respectively, are in contact on a frictionless
surface, as shown. If a force of 14 N is applied on the 4kg block, then the contact force between A
and B
1) 2N 2) 6N 3) 8N 4) 18N
26. If the critical angle for total internal reflection from a medium to vacuum is 300, then velocity of
light in the medium is
3 m m m 3 m
1) 108 2) 2 108 3) 3 108 4) 108
2 s s s 4 s
27. Which of the following waves have the maximum wave length
1) X – rays 2) Radio waves 3) Ultraviolet waves 4) Visible rays
28. A 2 µF capacitor is charged with the help of a 60 V battery. After disconnecting the battery it is
connected with another uncharged capacitor of 1µF. The potential difference across the plates of 2µ
F capacitor will be
1) 30 V 2) 60 V 3) 40 V 4) 20 V
29. Two coherent light waves of intensities I and 4I superpose at a point with phase difference of .
2
The resultant intensity of the superposed wave at that point will be
1) 1)5I 2)7I 3)6I 4)8I
30. To the captain of a ship A travelling with velocity v A 3i 4 j km / h , a second ship B appears
1) 2i 16 j km / h 2) 13i 8 j km / h 3) 2i 16 j km / h 4) 8 i j km / h
31. A small object is embedded in a glass sphere of µ = 3/2 and diameter 10 cm at a distance of 1.5 cm
left to the centre. Position of image of the object as seen by an observer standing to the left of the
sphere is nearly
1) 1 cm left to the centre 2) 2 cm left to the centre
3)1 cm right to the centre 4)2 cm right to the centre
32. For a nuclear reactor to run in critical condition the reproduction factor k should be
1) =1 2) >1 3) <1 4) >>1
33. A thin brass sheet at 20ºC and a thin steel sheet at 40°C have the same surface area. The common
temperature at which both would have the same area will be
( brass = 19 10−6 / 0 C and steel = 1110−6 / 0 C )
1) – 3.7ºC 2) –7.5ºC 3)12ºC 4) Not possible
34. Part AB of the track shown below is smooth and beyond point-B track is rough. A block of mass 2
kg is released from rest at point A and it stops after travelling 8 m on track BC. The value of friction
coefficient µ between block and track BC is
1 1 3 6
1) 2) 3) 4)
4 8 4 5
Pg. 4
35. 100g of ice at 00C is mixed with 100g of water at 1000C. What will be the final temperature of the
mixture? (Assume no heat loss)
(1)200C (2) 400C (3)300C (4)100C
SECTION – B
36. On the basis of Bohr’s atomic model the radius of 3rd orbit of any atom is
1) Three times of radius of first orbit 2) Nine times of radius of first orbit
3) One third of radius of first orbit 4) Equal to the radius of first orbit
37. If the radius of a circular coil is doubled and the number of turns are halved then the magnetic field
at the centre of the coil, for the same current will
1) Get doubled 2) Get one fourth 3) Get quadrupled 4) Remains unchanged
38. Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the
battery is
10
1) 5cm 2) cm 3) 10 cm 4) both 2 and 3
21
40. The minimum force required to move a body up an inclined plane of inclination 30º is found to be
three times the minimum force required to prevent it from sliding down the plane. The coefficient of
friction between the body and plane is
1 1 1 1
1) 2) 3) 4)
3 2 3 3 3 4 3
41. An electron of mass m and charge e initially at rest gets accelerated by constant electric field E. The
rate of change of de-Broglie wavelength of this electron at time t is
2h h h −2h
1) 2) 3) − 2
4)
eEt eEt eEt eEt 2
42. The minimum wavelength of the X-ray emitted by an X-ray tube operating at 10 kV is
o o o o
1) 1.24 A 2) 12.4 A 3) 3.1 A 4) 6.2 A
43. In a YDSE experiment, the coherent sources are at 2d distance from each other and screen is placed
a distance D from the slits. If nth bright fringe is formed on the screen exactly opposite to a slit, the
value of n must be
d2 d2 2d 2 d2
1) 2) 3) 4)
4 D D D 2 D
Pg. 5
44. Maximum kinetic energy of a photoelectron is E when the wavelength of incident light is . If
energy becomes four times when incident wavelength is reduced to one third, then work function of
the metal is
hc 3hc hc hc
1) 2) 3) 4)
2 3
45. A Neutron’s moving with a certain kinetic energy collide head on with an atom of mass number ‘A’.
Find the fraction of kinetic energy retained by it
3 2
A 1 A 1 A 1 4A
(1) (2) (3) (4)
A 1 A 1 A 1 ( A 1) 2
46. A particle of charge q and mass m starts moving from the origin under the action of an electric field
E = Eiˆ and magnetic field B = Biˆ with velocity = 0 ĵ . The speed of the particle will become 2 0
after a time.
2mυ0 2Bq 3Bq 3mυ0
(1) t = (2) t = (3) t = (4) t =
qE mυ 0 mυ0 qE
-1
47. A projectile is moving at 60ms at its highest point, where it breaks into two equal parts due to an
internal explosion. One part moves vertically up at 50 ms-1 w.r.t. ground. The other part will move
at
(1) 110 ms-1 (2) 120 ms-1 (3) 130 ms-1 (4)10 61 ms-1
48. A point charge q is placed at a distance ‘r’ from one end of a uniformly charged thin rod of length
‘L’ as shown in the figure. Magnitude of electric force between them will be
1 Qq 1 Qq Qq Qq
1) 2) 3) 4)
4 0 r(r + L) 4 0 r 2 2 0 r 2 4 0 ( L + r )2
49. Assertion(A): When a particle moves in a circular path with uniform speed , its velocity and
acceleration both change.
Reason (R): The centripetal acceleration in circular motion depends on angular velocity of the body.
1) Both A and R are true and R is correct explanation of A.
2) Both A and R are true and R is not correct explanation of A.
3) A is true but R is false
4) Both A and R are false.
50. Match list -I with list -II
List – I List – II
8RT
A) RMS velocity P)
M
1
B) Most probable velocity Q)
2 n D2
3RT
C) Average velocity R)
M
2RT
D) Mean free path S)
M
The correct match is
1) A → Q , B → S , C → R , D → P 2) A → S , B → P , C → Q , D → R
3) A → R , B → S , C → Q , D → P 4) A → R , B → S , C → P , D → Q
Pg. 6
CHEMISTRY
SECTION – A
51. The molarity of aqueous NaCl solution which contains 5.85 g NaCl in 500 ml solution is
1 1 3 2
1) 2) 3) 4)
5 2 5 5
52. Which of the following set of quantum number is possible?
1
1) n = 4, l = 4, m = –3, s=+
2
1
2) n = 4, l = 3, m = –2, s= −
2
1
3) n = 2, l = 3, m = +3, s=+
2
1
4) n = 4, l = 4, m = 4, s= −
2
53. IUPAC name of element with Z = 110 is
1) Ununnillium 2) Unnilseptium 3) Unnilunium 4) Ununoctium
54. Square planar molecule among the following is
1) SF4 2) CH4 3) XeF4 4) ClF3
OH
56. If enthalpy of combustion of butane is –2658 kJ mol –1 then how much heat energy will be released
by the combustion of 5.8 g of butane in kJ is
1)132.9 2)265.8 3)332.25 4)664.
57. If KC for the reaction N 2 ( g ) + O2 2 NO(g) is x then KC for the reaction
1 1
NO (g) N 2 ( g ) + O2 ( g ) is
2 2
1 1 1
1) x2 2) 3) 4)
x x2 x
58. Oxidation number of Cr in CrO5 is
1) +2 2) +5 3) +6 4) 10
i) O3
A + B
ii) Zn / H2O
CH3 C=CH CH3
CH3
KMnO4 / H+ A + C
59.
‘B’ on oxidation gives C. Identify A, B and C in the above reactions
(1) CH 3COCH 3 , CH 3CHO, CH 3COOH (2) CH3COOH , CH3CHO, CH3COCH3
(3) CH3COOH , CH3CHO, CH3COCH3 (4) CH 3COCH 3 , CH 3COOH , CH 3CHO
Pg. 7
60. When aqueous solution of 1 mole of PdSO4.4NH3 is treated with excess of BaCl2 solution one mole
of BaSO4 is precipitated . The formula of complex , primary and secondary valencies of metal are
respectively .
(1) [Pd(NH3)4]SO4 , 2 and 6 (2) [Pd(NH3)2SO4].2NH3 , 2 and 4
(3) [Pd(NH3)4]SO4 , 2 and 4 (4) [Pd(NH3)4SO4] , 2 and 6
61. Minimum electronegativity among the following is of
1) B 2) Al 3) In 4) Tl
62. Which of the following is a temporary effect?
1)Inductive 2) Electromeric 3) Resonance 4) Hyperconjugation
63. Which of the following can not be formed by Wurtz reaction?
1) C2H6 2) CH4 3) C3H8 4) C4H10
64. 0.126 g of an acid required 20 ml of 0.1 N NaOH for complete neutralization. Equivalent weight of
the acid is
1) 45 2) 53 3) 40 4) 63
65. P4 + xNaOH + yH 2O ⎯⎯ → mNaH 2 PO2 + nPH3
x, y, m, n are in the following order
1) 3, 2, 3, 1 2) 4, 2, 4, 1 3) 1, 2, 1, 2 4) 3, 3, 3, 1
66. Negative deviation solution among the following is/are
1) Phenol and aniline 2) Benzene and toluene
3) Ethanol and acetone 4) All of these
67. Which of the following is true?
1) om KCl − om NaCl = om KBr − om NaBr 2) om KCl + om NaCl = om KBr + om NaBr
3) om KCl − om NaBr = om KBr − om NaCl 4) All of these
68. If half life of a first order reaction is 2 min then the ratio of initial rate to the rate after two half lives
is
1 1 2 4
1) 2) 3) 4)
2 4 1 1
69. Consider the following statement :
( +) ( +)
I) CH3O C H 2 is more stable than CH 3 C H 2
(+) ( +)
II) Me3 C more stable than CH3CH 2 CH 2
( +) ( +)
III) CH 2 = CH − CH 2 is more stable than CH3CH 2 CH 2
(+) (+)
IV) CH 2 = CH is more stable than CH 3 CH 2
of these statement:
1) I and II are correct 2) III and IV are correct
3) I, II and III are correct 4) II, III and IV are correct
70. Which of the following oxide of Nitrogen is neutral?
1) N 2O5 2) N 2O3 3) N 2O4 4) N 2O
71. pH of a 10−14 M NaOH is nearest to :
1) 10 2) 7 3) 4 4) 10.9
72. Fusion of chromite ore with sodium carbonate in free access of air gives
1) Na2CrO4 2) Fe2O3 3) CO2 4) All of these
Pg. 8
73. Total number of geometrical isomers possible for MABXL type square planar complex is
1) 2 2) 3 3) 4 4) 5
+
74. CH3 ⎯⎯⎯
KCN
→ A ⎯⎯⎯
H3O
→ B The product B is
1) CH3OH 2) C2H5OH 3) CH3CHO 4) CH3COOH
75. Which of the following on reaction with Grignard reagent followed by hydrolysis form alcohol?
1) HCHO 2) CH3CHO 3) CH3COCH3 4) All of these
CHO Conc.NaOH
1) CH3 2) CH3
CH3
CH3 C CH2 OCH3 CH3 C CH2 OC2H5
3) CH3 4) CH3
96. Match the following
List – I List – II
I) Acidic nature a) HF> HI > HBr > HCl
II) Reducing nature b) HI > HBr > HCl > HF
III) Boiling points c) HCl > HBr > HI > HF
IV) Volatility d) HCl > HF > HBr > HI
The correct match is
I II III IV
1) a b c d
2) b d a c
3) d c a b
4) d b a c
Pg. 10
97. Which of the following is not a characteristic of interstitial compounds of transition elements?
1) The formulae of these compounds do not correspond to any normal oxidation state
2) They have melting points higher than those of pure elements
3) They are very hard and some compounds approach diamond in hardness
4) They do not exhibit metallic conductivity
98. The K SP of FeS = 4 10−19 at 298K. The minimum concentration of H + ions required to prevent
the precipitation of FeS from a 0.01M solution Fe 2+ salt by passing H 2 S (0.1M)
−21
(Given H 2 S ka1 ka2 = 10 )
100.
1) 2)
3) 4)
BOTANY
SECTION – A
101. Select the wrong statement w.r.t kingdom: Monera:
(1) Both the structure and behaviour of bacteria are simple.
(2) Mycoplasma do not survive without oxygen.
(3) Bacilli form spores during favourable conditions.
(4) All of the above.
102. Both p-arms and q-arms are seen in:
(A) Metacentric chromosomes (B) Sub-metacentric chromosomes
(C) Acrocentric chromosomes (D) Telocentric chromosomes
The correct answer is:
(1) A and B (2) B and C (3) B, C and D (4) A, C and D
103. Centrioles are duplicated in animal cells during:
(1) G1- phase (2) S- phase 3) G2- phase 4) M- phase
Pg. 11
104. White spots disease on the leaves of mustard is caused by:
(1) Albugo (2) Aspergillus (3) Agaricus (4) Alternaria
105. Select the correctly typed scientific name of mango:
(1) Mangifera indica Linn. (2) Mangifera indica Linn.
(3) Mangifera indica Linn. (4) Mangifera Indica Linn.
106. Select the incorrect statement of the following:
(1) Desmids are chief producers in the oceans.
(2) Dinoflagellates are used in the filtration of oils and syrups.
(3) Euglenoids have two equal size flagella.
(4) All of the above.
107. Viroids differ from Prions in --------------------:
(1) RNA without capsid coat (2) Abnormally folded proteins
(3) Being infectious (4) Causing mad cow disease
108. Which of the following is correct w.r.t imperfect fungi?
(1) Possess aseptate and coenocytic mycelium
(2) Reproduce sexually by oospores
(3) Include truffles and morels
(4) Reproduce asexually by conidia
109. Which of the following organisms were not classified in the five-kingdom classification system
by R.H. Whittaker:
(a) Chlorella and Chlamydomonas (b) Amoeba and Paramecium
(c) Lichens and Prions (d) Viruses and Viroids
(1) Both (a) and (b) (2) Only (b) (3) Both (c) and (d) (4) (a), (b), (c) and (d)
110. The correct floral formula of Brassicaceae is
Pg. 12
115. The paramount importance of algae is:
(1) Primary producers of energy-rich compounds
(2) Producers of hydrophilic colloids
(3) Used as food by space travellers
(4) Used to produce iodine
116. Assertion (A): Chlorophyll- a is the chief pigment of photosynthesis in plants.
Reason (R): Chlorophyll- a shows peaks at blue and red wavelengths in the action spectrum and
absorption spectrum.
(1) Both (A) and (R) are false.
(2) Both (A) and (R) are true and (R) correctly explains (A).
(3) (A) is true but (R) is false.
(4) Both (A) and (R) are true and (R) does not correctly explain (A).
117. If the sequence of coding strand of DNA is 5`GGCCTTAATGGCG3`, what will be the
sequence of mRNA formed from its template strand?
(1)5`CCGGAAUUACCGC3` (2) 3`GGGGAATTACGCC5’
(3) 3’GGCCAAUUACCGC5` (4) 5’GGCCUUAAUGGCG3`
118. Which of the following is incorrect w.r.t bundle sheath cells in C4- plants?
(A) Several layers of cells surrounding vascular bundles
(B) Intercellular spaces are present
(C) Do not permit gaseous exchange
(D) CO2 concentration is increased due to decarboxylation of C3- acid.
(1) A and B (2) B and C (3) B and D (4) A and D
119. Assertion (A): Respiration is an amphibolic pathway.
Reason (R): Carbohydrates, proteins, and lipids are not only degraded also synthesized in respiratory
pathway.
(1) (A) is true and (R) is false.
(2) Both (A) and (R) are true and (R) does not correctly explain (A).
(3) Both (A) and (R) are true and (R) correctly explains (A).
(4) Both (A) and (R) are false.
120. RNAi occurs at the level of:
(1) DNA replication (2) Transcription (3) RNA splicing (4) Translation
121. The alignment of chloroplasts at low light intensity is:
(A) Parallel to the walls of mesophyll cells (B) Perpendicular to the walls of mesophyll cells
(C) Parallel to the incident light (D) Perpendicular to the incident light
(1) Both (A) and (B) (2) Only (D)
(3) Both (A) and (D) (4) Only (C)
122. Select the correct match of the following:
List- I List- II
I. IAA A. Adenine
II. Zeatin B. Tryptophan
III. GA3 C. Ethephon
IV. Ethylene D. Terpenes
Pg. 19
199. Assertion: Whether it is the plants in Britain, birds in Califorina or molluscs in New York State, the
slopes of the regression line (Z) are amazing similar
Reason: Regardless of the taxonomic group or the region value of regression line (Z) are amazingly
similar.
1) Assertion and reason both are true and the reason is correct explanation of assertion.
2) Assertion and reason both are true but reason is not correct explanation of assertion.
3) Assertion is true but reason is wrong.
4) Assertion and reason both are wrong.
200. Consider the following statements-
A. Catecholomines stimulate the breakdown of glycogen into glucose.
B. Glucocorticoids produces Anti-inflammatory reactions.
C. Erythropoietin stimulates RBC production whereas Cortisol inhibit RBC production.
D. Insulin results in hyperglycemia whereas Glucogon causes hypoglycemia.
The incorrect statements among the above are:
1) A and B 2) B and C 3) C and D 4) A and D
Pg. 20