Question

the speed of light in water is 2.25 x 108 1 m s¹ and that of glass is 2.0 x 108 m s¹. calculate the refractive index of glass with respect to water.​

Answer 1

I hope it helps you my friend

Answer 2

Answer:

The speed of light in water is $2.25*10^{8}m/s$ and that of glass is $2*10^{8}m/s$, the refractive index of glass with respect to water is $0.88$

Explanation:

When a light ray travels from one medium to another medium its direction changes because light velocity is different in a different medium

The refractive index is the degree of change in direction of light, it can be expressed as the ratio of velocity in one medium to the other

that is $n=v_{1} /v_{2}$

from the question, we have the speed of the light in water is $v_{1} =2.25*10^{8}m/s$

that of glass is $v_{2}=2*10^{8}m/s$

now the refractive index of glass with respect to water is $n=2*10^{8}/2.25*10^{8}=0.88$