Question

What will be the refrastive index of a medium if the velocity is reduced 25% of thai in air

Answer 1

Answer:

We know that the refractive index of a medium =  

v  

m

​

 

c

​

 

where, v  

m

​

 = speed of light in the medium =2.25×10  

8

m/s

and, c= speed of light=3×10  

8

m/s

Therefore, Refractive index of medium =  

2.25×10  

8

 

3×10  

8  =1.33

Absolute refractive index of a medium is defined as the ratio of the velocity of light in a vacuum to the velocity of light in the medium. If c is the velocity of light in vacuum and v in the medium then,

n=cv  

Where n= absolute refractive indeX

Explanation:

HOPE IT IS HELPFUL FOR YOU AND PLEASE MARK ME BRAINLEST