Question

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

Answer 1

Answer:

2

Explanation:

'1n2' is the refractive index of second medium with respect to the first medium.

By formula,

1n2 = velocity of light in first medium

velocity of light in second medium

= 1.5×10

0.75×10

= 2

Answer 2

Answer:

Explanation:

Refractive index = v1/v2