Question

On entering a mediam from air, speed of light became half of its value in air .find the refractice index of that with respect to air. ​

Answer 1

Answer:

Explanation:

On entering in a medium from air, the speed of light becomes half of its value in air. Find the refractive index of that medium with respect to air?

Explanation:

Suppose speed of light in Air is= c = 2x

Then the speed of light in the medium will be= v =  x

refractive index of the medium will be= n= c/v = 2x/x = 2 Ans

Answer of Part 2

Answer 2

Answer:

Refractive Index of a medium (µ) = Velocity of light in vacuum / Velocity of light in the medium. Let the velocity of light in vacuum be v1 and velocity of light in the medium be v2. v1 /2 = v2. Hence µ = v1 / v2. = v1 / (v1 /2 ). = 2 (ii) (a) The ray moves towards the normal. (b) The ray moves undeviated. (c) The ray moves away from the normal. Read more on Sarthaks.com - https://www.sarthaks.com/503878/i-on-entering-in-a-medium-from-air-the-speed-of-light-becomes-half-of-its-value-in-air