Optics Question 83

Question: A ray of light falls on the surface of a spherical glass paper weight making an angle α with the normal and is refracted in the medium at an angle β . The angle of deviation of the emergent ray from the direction of the incident ray

[NCERT 1982]

Options:

A) (αβ)

B) 2(αβ)

C) (αβ)/2

D) (βα)

Show Answer

Answer:

Correct Answer: B

Solution:

From the following ray diagram it is clear that δ=(αβ)+(αβ)

=2(αβ)



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