Question

the refractive index of water and air is 1.33 . The velocity of light in vacuum is 3*10 ki pavar 8 m per sec .calculate the velocity of light in water

Answer 1

hey mate

since ц=c/v=speed of light in air/speed of light in medium

so,цv=c

or , v=c/ц=3X10².².²/1.33

=2.25X10²·²·²m/s

hope it helps u dear

Answer 2

Answer:

2.25 × 10⁸ m / sec

Explanation:

Given :

Refractive index of water = 1.33

Speed of light in air = 3 × 10⁸ m / sec.

We know :

Refractive index = Speed of light in air / Speed of light in water

Speed of light in water = Speed of light in air / Refractive index.

Putting value we get :

Speed of light in water = 3 × 10⁸ m / sec / 1.33 .

Speed of light in water = 2.25 × 10⁸ m / sec

Hence speed of light in water is 2.25 × 10⁸ m / sec