MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Refractive Index

Which of the ...

Question

Which of the following is true about the speed of light?

A

Same in all media

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

The greatest in vacuum

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Greater in air than in vacuum

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Does not change from medium to medium

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D The greatest in vacuum
The speed of light decreases with an increase in the density of the medium.
Since, vaccum is the least dense medium, the speed of light is greatest in vacuum.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Following statements which are true for light waves but not for sound waves are/is

(I) The speed of waves is greater in vacuum than in a medium
(II) Waves of different frequencies travel with different speeds in a medium
(III) Waves travel with different speeds in different media.

State whether the following statement is True or False.

In an optically denser medium, the speed of light is more than the speed of light in air.

Q. The speeds of red light and yellow light are exactly same
(a) in vacuum but not in air
(b) in air but not in vacuum
(c) in vacuum as well as in air
(d) neither in vacuum nor in air

How is the refractive index of a medium related to the speed of light in it and in vacuum or air?

Q. A beam of monochromatic light enters in air from the glass medium. Which of following properties will change?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Playing with Refractive Index

PHYSICS

Watch in App

explore_more_icon

Explore more

Refractive Index

Standard X Physics

Join BYJU'S Learning Program

CrossIcon