Question

The refractive index of water is 1.33,so the speed of light in water is:

Answer 1

Given

The refractive index of water is

`\mu=1.33`

To find

The speed of light in water

Step-by-step explanation

Speed of light in a medium is:

`v=(c)/(\mu)`

Putting the values,

`\begin{gathered} v=(3*10^8)/(1.33) \\ \Rightarrow v=2.25*10^8\text{ m/s} \end{gathered}`

Conclusion

The speed of light in water is

`2.25*10^8\text{ m/s}`