Physics, asked by sohelmohammad6702, 11 months ago

A ray of light AO in vacuum is incident on a glass slab at angle 60° and refracted at angle 30° along OB as shown in the figure. The optical path length of light ray from A to B is :
(A) 2a + (2b/√3)
(B) 2a + (2b/3)
(C) (2√3/a) + 2b
(D) 2a + 2b

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Answered by ra8755jnish

3

Answer:

option d is correct okbro

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