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Coming from vacuum, a ray of light in incident on a slab of glass of refractive index such that the angle of incidence is twice the angle of deviation. Refraction is at only one surface. Then the angle of deviation is
detailed solution
Correct option is C
i=2δ=2(i-r)⇒i=2rBy snell's law, sin i=μ sin r⇒sin 2r=μ sin r⇒2 sin r cos r=μ sin r∴r=cos-1μ2=cos-132=30o∴i=2 x 30o=60o and δ=60o2=30oTalk to our academic expert!
Similar Questions
A vessel is half filled with a liquid of refractive index μ. The other half of the vessel is filled with an immiscible liquid of refractive index 1.5 μ. The apparent depth of vessel is 50% of the actual depth. The value of μ is
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