Question

The speed of light in air is 3×10 power 8 m/s. Calculate the speed of light in glass if the refractive index of glass is 1.5. Plz solve this question fast because I have to write fast

Answer 1

Answer: 2×10^8 m/s

Explanation:

refractive index=1.5

speed of light in vaccum=3×10^8m/s

speed of light={3×10^8}/1.5 m/s

=2×10^8 m/s

Answer 2

Explanation:

n =c/v

so,

v=c/n

v=3×10^8/1.5

v=2×10^8 ms^-1