Question

Calculate the angle of incidence of light ray incident on surface of plastic of refracture index root 3 and angle of reflection is 30 degree

Answer 1

Answer:

i = 60°

Explanation:

Refractive index = sin i / sin r

=> _/3 = sin i / sin 30°

=> sin i = _/3 / 2 ...( sin 30° = 1 / 2 )

=> sin i = sin 60° ...( sin 60° = _/3 / 2 )

=> i = 60°

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