Question

light travels through water with a speed of 2•25×108m what is the refractive index of water​

Answer 1

Answer:

Speed of light in water, V = 2.25 x 10^8 m/s

Speed of light in vaccum, C = 3 x 10^8 m/s

Refractive index, n = ?

n = V/C

n = 2.25 x 10^8 m/s / 3 x 10^8 m/s

n = 0.75