Question

The frequency of a light wave in a material is 2×1014 Hz and wavelength is 5000 Å. The refractive index of material will be:-

Answer 1

selected Apr 17, 2018 by Vikash Kumar

 

The refractive index of material will be 

Answer 2

Answer:

3.00

Explanation:

velocity of light in vacuum (C)= velocity of light in medium (v)

But v=v=2 x 1014 × 5000 × 10-10

(b) u

In the medium, v= 108 m/s.

3x108

u = V vac/ V med = 3×10^8/ 10^8 = 3.