Question

plzzzz.........
help me ​

Answer 1

Explanation:

it is the right answer the question

Answer 2

Answer:

Refractive index is equal to speed of light in vaccum/speed of light in that medium

so,

speed of light in vaccum is c

Refractive index is n

we have to find speed of light in that medium.

let speed of light in that medium be x

n is equal to c/x

x is equal to n/c

I hope this will help you