Question

Speed of light in a medium is 75 x 10^6 m/s. What is the refractive index of the medium?

Answer 1

Answer:

Correct option is

A

5

4

It is to be noted that

μ=

speedoflightinmedium

speedoflightinvaccum

Hence, μ

1

=

2.5/10

8

3/10

8

and μ

2

=

2/10

8

3/10

8

Now , Refractive index of medium (1) w.r.t. medium (2)

μ

2

=

μ

2

μ

1

=

2.5/10

8

3/10

8

/

3/10

8

2/10

8

μ

2

=

5

4

Hope it helps

Plz mark me as brainliest