If the speed of light in a vaccum is c, the speed of light in a medium like glass with an index of refraction of 1.5 is : (a) 3c/2 (b) 3c (c) 2c/3 (d) 9c/4 (e) 4c/9 explain in detail why it is the answer you have chosen

The speed of light in the medium is

(c) correct option.

Explanation:

Given that,

Speed of light in vacuum = c

Refraction index = 1.5

We need to calculate the value of speed of light in the medium

The refractive index is equal to the speed of light in vacuum divide by the speed of light in medium.

Using formula of refractive index

Where, c = speed of light in vacuum

v = speed of light in medium

Put the value into the formula

Hence, The speed of light in the medium is

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

scientific laws are the result of testing theories and proving them to be facts.