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A ray of light is incident on a parallel...

A ray of light is incident on a parallel slab of thickness t and refractive index n. If the angle of incidence `theta` is small, than the lateral displacement in the incident and emergent ray will be

A

`(t theta(n-1))/(n)`

B

`(t theta)/(n)`

C

`(t theta n)/(n-1)`

D

`(t theta(n+1))/(n)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A ray of light is incident upon a parallel sided transparent slab of thickness 9 cm at an angle of incidence 60° • If the angle of refraction is 30°, the lateral displacement of the light ray is

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