Light can travel in vacuum whereas sound...

Light can travel in vacuum whereas sound can not do so. Why?

Text Solution

Verified by Experts

Light being electromagnetic wave do not require
any material medium for its propagation. Hence
light can travel in vacuum. On the other hand
sound is a mechanical wave. It requires a
material medium for its propagation. Hence
sound can not travel in vacuum.

Topper's Solved these Questions

ELECTROMAGNETIC WAVES
PRADEEP|Exercise Solved Example|4 Videos
ELECTROMAGNETIC WAVES
PRADEEP|Exercise (I) Conceptual problems|1 Videos
ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT
PRADEEP|Exercise Multiple Choice Questions|1 Videos
ELECTRONIC DEVICES
PRADEEP|Exercise Fill in the Blanks|1 Videos

Assertion: Light can travel in vacuum but sound cannot do so. Reason: Light is an em wave and sound is a mechanical wave.

Both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

Both Assertion and Reason are true, but Reason is not true explanation of the Assertion.

Assertion is true, but the Reason is false.

both Assertion and Reason is false.

A light wave can travel

in vacuum

in vacuum only

in a meterial medium

in a meterial medium only.

Conider the following statements 1. light waves can travel in vacuum 2. light waves can be refracted 3. light waves are electron magnetic Which of the statements given above are correct ?

1, 2 and 3

2 and 3 only

1 and 3 only

1 and 2 only