Q.

Refractive index of water with respect to air is 2 . A light ray is incident on the surface at an angle 600 travelling through water. The deviation of light ray is

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a

30°

b

120°

c

60°

d

answer is D.

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Detailed Solution

Travells from water to air μ=1sinc
sinc=1μ=12;c=450
here i =600,  i.e i>c light Reffects into The same medium  
d=1802i
=18002×60=600
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