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JEE PHYSICS MCQ: RAY OPTICS

1 Hard

1 of 1

Application +4 | -1

A beam of light of width

t

is incident on an air-water boundary at an angle of incidence

45^{\circ}

. The width of the beam in water is (Refractive index of water

=\mu

):

View answer and explanation

Correct option: C

\frac{\sqrt{2 \mu^2-1}}{\mu} \cdot t

Option C (

\frac{\sqrt{2 \mu^2-1}}{\mu} \cdot t

) is correct because it is derived from Snell's law and trigonometric relationships to find the width of the beam in water.

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