if the angle of incidence (I) for light ray in air 40' and the angle of reflection (r) in glass be 30' .find the refractive index of Glass with respect to air.
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hey dear here is your answer
refractive index = sin i / sin r
= sin45/sin30
= (1/√2)/(1/2)
= 2/(√2)
= √2
= 1.414 (from log table)
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I have given 40' in my question and you have gave as 45' in your answer.
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