Question

The refractive index of water is a) 1.51 b) 2.13 c) 1.33 d) 2.23

Answer 1

Refractive index for water is 1.33.

It is the value or the measure when a ray of light passes from one medium of light to the other.

The formula is given by n = sin i/sin r where i is the angle of incidence and r is the angle of refraction.

Or you can also say that n =c/v

Answer 2

Answer :

c. 1.33

Refractive of water can be calculated as by calculating its absolute refractive index.

Refractive of glass = c / w

where c is velocity of light in air and w is velocity of light in water.