Question

The refractive of index of light entering glass from water is 1012. find absolute refractive index of water if the absoute refractive of glass is 1.5

Page 47 Chapter - 2.Reflection and Refraction

Answer 1

Answer:

The absolute refractive index of water is 1.34

Explanation:

The question is:

The refractive of index of light entering glass from water is 1.12. find absolute refractive index of water if the absoute refractive of glass is 1.5.

Solution:

Given

Refractive index of glass with respect to water = 1.12

We know that

$\text{Refractive index of medium 1 with respect to medium 2}=\frac{\text{Refractive index of medium 1}}{\text{Refractive index of medium 2}}$

Therefore,

$\text{Refractive index of glass with respect to water}=\frac{\text{Refractive index of glass}}{\text{Refractive index of water}}$

or, $1.012=\frac{1.5}{\text{Refractive index of water}}$

or, $\text{Refractive index of water}=\frac{1.5}{1.12} =1.34$