If the refractive index of second medium with respect to first medium is n 1 2 and that of third medium with respect to second medium is n 2 3 , what and how much is n 1 3 ?

Given that, The relative refractive index of the second medium with respect to the first medium is n 1 2 = v 1 v 2 where v 1 is the speed of light in the first medium and v 2 is the speed of light in the second medium. Similarly, the relative refractive index of the third medium with respect to the second medium is n 2 3 = v 2 v 3 where v 2 is the speed of light in the second medium and v 3 is the speed of light in the third medium. Then, n 1 3 is the relative refractive index of the third medium with respect to the first medium and is n 1 3 = n 2 3 n 2 1 = n 2 3 1 n 1 2 = v 2 v 3 1 v 1 v 2 = v 2 v 3 × v 1 v 2 = v 1 v 3 . Thus, n 1 3 = v 1 v 3 .

E M B I B E

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Use your brain power!>Q 2

EASY

10th Maharashtra Board

IMPORTANT

Earn 100

Will the velocity of light be same in all media?

Important Questions on Refraction of Light

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Can you tell?>Q 1

If the refractive index of second medium with respect to first medium is

{}_{2}n_{1}

and that of third medium with respect to second medium is

{}_{3}n_{2}

, what and how much is

{}_{3}n_{1}

?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Can you tell?>Q 1

Have you seen a mirage which is an illusion of the appearance of water on a hot road or in a desert?

EASY

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Can you tell?>Q 2

Have you seen that objects beyond and above a holy fire appear to be shaking? Why does this happen?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Use your brain power!>Q 1

From incident white light how will you obtain white emergent light by making use of two prisms?

EASY

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Use your brain power!>Q 2

You must have seen chandeliers having glass prisms. The light from a tungsten bulb gets dispersed while passing through these prisms and we see coloured spectrum. If we use an LED light instead of a tungsten bulb, will we be able to see the same effect?

EASY

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Exercise>Q 1

Refractive index depends on the _____ of light. (velocity/intensity)

EASY

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 6 - Refraction of Light>Exercise>Q 1

The change in _____ of light rays while going from one medium to another is called refraction.

HARD

10th Maharashtra Board