Question

Which of the following statements is/are NOT true?
(A) Sound and light both require a medium for propagation.
(B) Sound can travel through vacuum, but light cannot.
(C) Sound needs a medium, but light does not need a medium
for its propagation.
(D) Sound and light both cannot travel in a medium.​

Answer 1

Answer:

1. Not true

2. Not true

3. True

4. True

Answer 2

Answer:

A, B, and D are NOT true.

Explanation:

A) Sound requires a medium for propagation whereas light doesn't.

B) Light can travel through vacuum but sound cannot.

D)Both can travel through media but light can even travel through vacuum.

More information:- Light is an electromagnetic wave. Electromagnetic wave can travel without any medium. But in the case of sound, it require medium to propagate because it just a vibration so that it requires medium to travel.