Question

3. Light travels with a velocity 1.5 x 10 m/s in a medium. On entering the second
medium is velocity becomes 0.75 10 m/s. What is the retractive index of the
second medium with respect to the first medium?​

Answer 1

Answer:

refractive index = 0.5

Answer 2

Answer:

Given : Velocity of medium =1.5×10

8

m/sec.

Velocity of light, c=3×10

8

m/sec.

To find : n=?

n=

v

c

n=

1.5×10

8

3×10

8

=2

n=2

Hence, the refractive index of the medium with respect to air is 2.