Question

The angle of incidence is 30 degree and angle of refraction is 40 degree. what is the refractive index
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Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

for the refractive index take sin i by sin r that is constant or refractive index of vacuum by refractive index of medium for refractive index of medium 1 by refractive index of medium to buy both of these you will get an answer and the answer will be the