Question

The speed of light in air is 3 into 10 power 8 metre per second calculate the speed of light in glass the refractive index of Glass is 1.5

Answer 1

It is very simple

so the Refractive index formula

û=c/v

given

u=1.5

c=3x10^8

1.5=3x10^8/v

v=3x10^8/1.5

v=2x10^8

so finded

Answer 2

Explanation:

answer = 3 × 10 ^ 8 is the answer