POLYCET (2022) Mock Test Refraction Of Light At Plane Surfaces - 2
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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
Which of the following is the basic principle behind working of optical fibre?
a. Scattering the light
d. Total internal reflection
Which of the following is the critical angle of diamond?
a. 24.4 degrees
Ravi is going on a road at 12 noon . He saw a mirage on the road. Imagine why it happens
a. Due to reflection
c. Due to refraction
d. Due to total internal reflection
What is the refractive index for Ruby?
Refractive index of carbondisulphate is
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
Refractive index of a medium is root 2 then its critical angle is
b. 67 degrees
c. 22 degrees
d. 45 degrees
The process of changing speed when light travels from one medium to another medium is called
a. Refraction of light
c. Refractive index
d. Reflection of light
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
Which of the following is the refractive index of benzene?
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
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
Which of the following material has refractive index value as 1.33?
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
Refractive index value of ice > Refractive index of ruby
Is it true or not? any explanations.
c. Ice has no refractive index value
The brilliance of diamond is due to
b. Total internal reflection
For heart surgery doctor sent a tube to see internal parts on computer.What is that tube?
a. Optical fiber
Refractive index of carbondisulphate is
Virtual images of distant high objects causes the optical illusion called
c. Total internal reflection