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A ray of light is in incident on an air glass boundary at an angle. If the angle between the partially reflected Ray and the refracted ray is 90°, calculate the angle, given that the refractive index of glass is 1.50

Answer :

Explanation:

n = sini/sinr

1.5 = sinθ/sin(190−θ) = sinθ/cosθ = tanθ

Hence, 0 = tan−1 1.5 = 56.31°

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