Question

A Ray of light strike a glass plate and the angle of 60 degree with the glass surface if the reflected and refracted rays are at right angle to each other find the refractive index of the glass.​

Answer 1

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✍️ when the reflected and refracted rays are at right angle to each other the angle of incident is known as angle of polarization .

here, theta = 60°

n = tan iB

we get,

n= tan 60°

= √3

= 1.732

Answer 2

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ANGLE OF REFRECTION:-SIN30°

ANGLE OF INCIDENT:-SIN60

THN

SIN60°=x sin 30°

=>x=sin60°/sin30

=1.732

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