Question

The absolute refractive index of water is 1.36.What is the velocity of light in water? (velocity of light in vacuum 3×10^8 m/s)

Answer 1

this is the answer hope it will help you.

Answer 2

The velocity of light in water $=2.205\times 10^8\dfrac{m}{s}$

Explanation:

Given,

The absolute refractive index of water = 1.36 and

velocity of light in vacuum= $3\times 10^8 \dfrac{m}{s}$

To find, the velocity of light in water = ?

We know that,

The velocity of light in water =$\dfrac{velocity of light in vacuum}{The absolute refractive index of water}$

$=\dfrac{3\times 10^8 \dfrac{m}{s}}{1.36}$

$=2.205\times 10^8\dfrac{m}{s}$

The velocity of light in water $=2.205\times 10^8\dfrac{m}{s}$

Hence, the velocity of light in water $=2.205\times 10^8\dfrac{m}{s}$