Question

The speed of light in glass is 2×10 8 m/s and that in water is 2.25×10 8 m/s. find the refractive index of glass with respect to water.

Answer 1

Answer:

Speed of light in vacuum = 3.0×10  

8

m/s  

Speed of light in water = 2.25×10  

8

m/s  

Refractive index of water = ?

We know that  

Refractive index of water =  

Speed of light in water  

Speed of light in vacuum

​  

 

Refractive index of water =  

2.25×10  

8

 

3×10  

8

 

​  

=1.33