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DPP 4SnellsLaw

This document provides information about light refraction and refractive indices through 9 multiple choice questions. It includes the questions, possible answer choices for each question, and the answer key. The questions cover topics like Snell's law, calculating refractive indices based on given angle information, and determining the order of increasing refractive indices between different media. Links are also provided to video and written solutions for the questions on the Physicsaholics website and YouTube channel.

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109 views2 pages

DPP 4SnellsLaw

This document provides information about light refraction and refractive indices through 9 multiple choice questions. It includes the questions, possible answer choices for each question, and the answer key. The questions cover topics like Snell's law, calculating refractive indices based on given angle information, and determining the order of increasing refractive indices between different media. Links are also provided to video and written solutions for the questions on the Physicsaholics website and YouTube channel.

Uploaded by

Bottle Master
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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P hysicsaholics

DPP – 4
Video Solution on Website:- https://physicsaholics.com/home/courseDetails/31

Video Solution on YouTube:- https://youtu.be/kIz6NkJ4A48

Written Solution on YouTube:- https://physicsaholics.com/note/notesDetalis/58

Q 1. A light ray is incident on water surface from air at an angle 450 , then angle of
4
refraction in water is: (𝜇𝑤 = 3)
3 3 1 3
(a) sin−1 4√2 (b) sin−1 (c) sin−1 (d) tan−1 4√2
√2 √2

Q 2. A light ray goes from medium A (refractive index √2 & angle of incidence 450 ) to
2
medium B (refractive index ) then light ray is deviated by angle
√3
(a) 250 (b)300 (c) 150 (d) 500

Q 3. Refraction of light from air to glass and from air to water are shown in figure (i) and
figure (ii) below. The value of the angle 𝜃 in the case of refraction as shown in figure
(iii) will be

(a) 30° (b) 35°


(c) 60° (d) 41°

Q 4. A ray of light refracts as it passes from glass into a vacuum. It’s angle of incidence
is 300 , and its angle of refraction is 600 , what is the index of refraction of the glass?
1 2
(a) √3 (b) 3 √3 (c) 1.33 (d) 3 √3

Q 5. The following figure shows refraction of light at the interface of three media Correct
order of optical density (d) of the media is: (𝑖1 > 𝑟2 )

1
P hysicsaholics

(a) 𝑑1 > 𝑑2 > 𝑑3


(b) 𝑑2 > 𝑑1 > 𝑑3
(c) 𝑑3 > 𝑑1 > 𝑑2
(d) 𝑑2 > 𝑑3 > 𝑑1
Q 6. The refractive index of glass and water with respect to air are 3/2 and 4/3
respectively. The refractive index of glass with respect to water is:
(a) 8/9 (b) 9/8 (c) 2 (d) 1/2

Q 7. A light ray goes from medium A (refractive index 𝜇1 & angle of incidence i) to
medium B (refractive index 𝜇2 & angle of refraction r) then:
(a) 𝜇1 sin 𝑖 = 𝜇2 sin 𝑟 (b) 𝜇1 tan 𝑖 = 𝜇2 tan 𝑟
(c) 𝜇2 sin 𝑖 = 𝜇1 sin 𝑟 (d) 𝜇1 sin 𝑟 = 𝜇2 sin 𝑖

Q 8. Calculate the ratio of sine of incident angle to the sine of refracted angle when the
refractive indices of medium 1 and 2 are given as 2.33 and 1.66 respectively.
(a) 0.71 (b) 1.4
(c) 2 (d) 3.99

Q 9. Find the ratio of the refractive index of medium 1 to that of medium 2, when the
incident and reflected angles are given by 300 and 450 respectively.
(a) 0.5 (b) 1
(c) 2 (d) √2

Answer Key

Q.1 a Q.2 c Q.3 b Q.4 a Q.5 d

Q.6 b Q.7 a Q.8 a Q.9 d

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