Question

Speed of light in water and glass is 2.24×10^8m/s and 2×10^8m/s. What is the refractive index of water with respect to glass​

Answer 1

Refractive index of glass with respect to water =speed of light in glass / speed of light in water

=(2×10^8)/(2.24×10^8)

=25/28

For refractive index of water with respect to glass, it is 28/25

Hope it helped u☺️☺️☺️

Answer 2

the answer is 0.89 (speed of light in glass /speed of light in water)