Question

if the speed of light in vacuum is 3x10 ^8 m/s and speed of light in water is 2.25 × 10^8m/s . calculate the refractive index of water​

Answer 1

Answer:

Speed of light in vacuum = 3.0 x 108m/s

Speed of light in water = 2.25 x 108m/s

Refractive index of water = ?

We know that

Refractive index of water = speed of light in vacuum/speed of light in water

Refractive index of water = 3 x 108/2.25 x 108 = 1.33

Explanation:

Answer 2

Answer:

1.33

Explanation:

refractive index of light in vaccum = 3× 10^8 m/s

speed of light in water 2.25 × 10^8 m/s

refractive index = 3× 10^8 m/s ÷ 2.25 × 10^8 m/s

= 12/9

=1.33