A beam of light passes from air into a substance X . If the angle of incidence be 60° and angle of refraction be 30° . Calculate the refractive index of substance X . ( sin 60° = √3/2 and sin 30° = 1/2 )
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Answer:
sin i / sin r = constant
sin60°/sin 30°=√3/2×2/1
=√3 is your answer
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