Q4 of 8 Page 79

Solve the following examples.

If the speed of light in a medium is 1.5 x 108 m/s, what is the absolute refractive index of the medium?

Absolute refractive index of medium is with respect to air.


So absolute refractive index of medium μ =


Speed of light in air = 3 x 108 m/s


Speed of light in the given medium = 1.5 x 108 m/s


Absolute refractive index of medium μ =


So μ = 2


More from this chapter

All 8 →
3

Mark the correct answer in the following questions.

What is the reason for the twinkling of stars?

 3

Mark the correct answer in the following questions.

We can see the Sun even when it is little below the horizon because of

 3

Mark the correct answer in the following questions.

If the refractive index of glass with respect to air is 3/2, what is the refractive index of air with respect to glass?

 4

Solve the following examples.

If the absolute refractive indices of glass and water are 3/2 and 4/3 respectively, what is the refractive index of glass with respect to water?