A ray of light from a liquid ( μ = 
) is incident on a system of two right angled prism of refractive indices 
and 
as shown. The ray suffers zero deviation when emerges into air from CD. The angle of incidence i is -
Text Solution
Verified by ExpertsThe correct answer is:
A
By Snell's law at the surface AC
sin 
= 
sin r …. (1)
By Snell's law at the surface DC,
sin 
= 1 sin i ……. (2)
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