Question

The refractive indices of four media A, B, C and D are given in the following table: A-1.33 B-1.50 C-1.52 D-2.40 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum(also give the explanation)

Answer 1

6 .75 ...........................

Answer 2

Answer:

here is your answer

Explanation:

(a) The change in speed will be maximum when light travels from Medium A to Medium D as Medium A has the lowest refractive index so Medium A has maximum speed and Medium D has greatest value of refractive index so Medium D has minimum speed.

(b) The change in speed will be minimum when light travels from Medium B to Medium C because their diffference of refractive index is least. So, the speed of light in these medium will be approximately same