Question

Refractive index of water with respect to air is 1.33 and that of diamond is
2.42.
(1) In which medium does the light move faster, water or diamond?
(ii) What is the refractive index of diamond with respect to water?​

Answer 1

Answer:

1) The speed of light in a medium is inversely proportional to its refractive index. So the Medium having higer refractive index will have less speed of light in it. Hence light moves faster in water.

ii) Absolute Refractive index of water = 1.33

Absolute Refractive index of diamond= 2.4

Refractive index of diamond with respect to water

=

\frac{2.4}{1.33}

1.33

2.4

= 1.80