A light ray in air is incident on an unknown substance with an incidence angle o

Question

A light ray in air is incident on an unknown substance with an incidence angle of 36 degrees. If the light ray is refracted at an angle 24 degrees in the substance, what is the index of refraction of the substance? Round your answer to 1 decimal place. A light ray in air is incident on an unknown substance with an incidence angle of 36 degrees. If the light ray is refracted at an angle 24 degrees in the substance, what is the index of refraction of the substance? Round your answer to 1 decimal place.

Explanation / Answer

Here ,

angle of incidence , i = 36 degree

angle of refraction , r = 24 degree

Now, for the index of refraction n

Using Snell's law

1 * sin(36 degree) = n * sin(24 degree)

n = 1.45

the index of refraction of the substance is 1.45

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