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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Ray Optics

Olympiad workbook · NSEP · Ray Optics

A ray is incident on a refracting surface of RI μ at an angle of...

A ray is incident on a refracting surface of RI

\mu

at an angle of incidence

i

and the corresponding angle of refraction is

r

. The deviation of the ray after refraction is given by

\delta =i-r

. Then, one may conclude that

Options

A $r$ increases with $I$
B $\delta$ increases with $i$
C $\delta$ decreases with $I$
Dthe maximum value of $\delta$ is $\cos ^{-1} \left(\frac{1}{\mu}\right)

Correct answer

D. the maximum value of $\delta$ is $\cos ^{-1} \left(\frac{1}{\mu}\right)

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