POLYCET (2022) Mock Test Refraction Of Light At Plane Surfaces - 2
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మీకు ఏవైనా కీ లోపాలు దొరికితే లోపాలు మాకు తెలియజేయడానికి వెనుకాడవద్దు.
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Question 1 of 20
1. Question
The refractive index of medium 1 relative to medium 2 is 4/3.then the refractive index of medium 2 relative to medium 1 is
a. 4/3
b. 3/4
c. 9/16
d. 16/9 -
Question 2 of 20
2. Question
Which of the following is the basic principle behind working of optical fibre?
a. Scattering the light
b. Refraction
c. Reflection
d. Total internal reflection -
Question 3 of 20
3. Question
Which of the following is the critical angle of diamond?
a. 24.4 degrees
b. 24.4′
c. None
d. 24.4 -
Question 4 of 20
4. Question
Ravi is going on a road at 12 noon . He saw a mirage on the road. Imagine why it happens
a. Due to reflection
b. None
c. Due to refraction
d. Due to total internal reflection -
Question 5 of 20
5. Question
What is the refractive index for Ruby?
a. 1.53
b. 1.50
c. 1.71
d. 1.52 -
Question 6 of 20
6. Question
Refractive index of carbondisulphate is
a. 1.63
b. 1.64
c. 1.68
d. 1.67 -
Question 7 of 20
7. Question
In the experiment demonstration of refraction using metal disk straws which is kept inside water tank when the two straws appears to be in straight line
a. The straw which is in water kept 450 with water surface
b. A straw which is inside water kept at right angle to surface of water
c. The straw which is in water kept parallel to water surface
d. There is no case of observing two straws in a straight line -
Question 8 of 20
8. Question
Refractive index of a medium is root 2 then its critical angle is
a. None
b. 67 degrees
c. 22 degrees
d. 45 degrees -
Question 9 of 20
9. Question
The process of changing speed when light travels from one medium to another medium is called
a. Refraction of light
b. None
c. Refractive index
d. Reflection of light -
Question 10 of 20
10. Question
When angle of incidence is equal to critical angle then angle of refraction is equal to?
a. 0 degrees
b. 90 derees
c. 45 degrees
d. 30 degrees -
Question 11 of 20
11. Question
Which of the following is the refractive index of benzene?
a. 1.47
b. 1.50
c. 1.52
d. 1.46 -
Question 12 of 20
12. Question
The angle of deviation produced by the glass slab is
a. 20 degrees
b. 0 degrees
c. 90 degrees
d. Depends on the angle formed by the light ray and normal to the slab -
Question 13 of 20
13. Question
A man photographed a white donkey after fitting black strips vertically on to the lens of his camera. What photo will he get?
a. An image of zebra with horizontal strips
b. An image of zebra with vertical strips
c. A bright image of white donkey
d. A dull image of white donkey -
Question 14 of 20
14. Question
Which of the following material has refractive index value as 1.33?
a. Kerosene
b. Ice
c. Air
d. Water -
Question 15 of 20
15. Question
The basic cause of refraction is
a. When the refractive indices of two media are not equal
b. When the refractive indices of two media are equal
c. When light is incident on a boundary
d. The change in the speed of light in going from one medium to another -
Question 16 of 20
16. Question
Refractive index value of ice > Refractive index of ruby
Is it true or not? any explanations.
a. True
b. None
c. Ice has no refractive index value
d. False -
Question 17 of 20
17. Question
The brilliance of diamond is due to
a. Interference
b. Total internal reflection
c. Refraction
d. Reflection -
Question 18 of 20
18. Question
For heart surgery doctor sent a tube to see internal parts on computer.What is that tube?
a. Optical fiber
b. Plastic
c. Fiber
d. Synthetic -
Question 19 of 20
19. Question
Refractive index of carbondisulphate is
a. 1.67
b. 1.64
c. 1.68
d. 1.63 -
Question 20 of 20
20. Question
Virtual images of distant high objects causes the optical illusion called
a. Density
b. Mirage
c. Total internal reflection
d. Refraction