Question

The refractive index of water is 4/3 and the speed of light in air 3×10*8 m/s. Find the speed of light in air.​

Answer 1

Answer:

n=4/3

v*1=3×10*8

v*2=?

n=v*1/v*2

4/3=3×10*8/v*2

4v*2=3×3×10*8

v*2=9×10*8/4

v*2=2.22×10*8