Question

if a Ray of light enters from alcohol to air the refractive index of the alcohol is 1.36 calculate the speed of light in alcohol with respect to air​

Answer 1

Answer:

The speed of light in alcohol will be 2.2 X 10^ 8 ms-1.

Refractive index is a measure of the bending of a ray of light when passing from one medium into another medium. It is also known as the index of refraction.

n = c/v

Here n = index of refraction

       C = velocity of light in vacuum

       V = velocity of light in medium

    1.36 = 3 x 10^ 8/ V

     V = 3 x 10^ 8/1.36  

    V =  2.2 X 10^ 8 ms-1

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