Question

The refractive index of glass with respect to air is 4/3.The refractive index glass with respect to water will be:
(a) 1.525 (b) 1.225 (c) 1.425 (d) 1.125

Pls do step by step​

Answer 1

Answer:

Refractive index of glass w.r.t. water

                               = refractive index of glass / refractive index of water

                               = (3/2) / (4/3)

                               = 9 / 8

                               = 1.125

                 

                                                   OR

Refractive index of glass w.r.t. water

                = speed of light in water / speed of light in glass

                = 2.25 x 10⁸ / 2 x 10⁸

                = 1.125