Question

Find the refractive index of the second medium with respect to the first medium, if light moves through the first medium with velocity 2x 108 ms -1, which changes to 1.25 x 108 ms -1 in the second medium. (1) 2.5 (2) 1.33 (3) 1.6 (4) 0.625​

Answer 1

light moves through the first medium with velocity 2x 108 ms -1, which changes to 1.25 x 108 ms -1 in the second medium. (1) 2.5 (2) 1.33 (3) 1.6 (4) 0.625