Question

Sound waves cannot travel through
A) Gas
B) Liquid
C) Vacuum
D) Solid

Answer 1

c. vacuum is answer
since there is no medium

Answer 2

Question :

Sound waves cannot travel through
A) Gas
B) Liquid
C) Vacuum
D) Solid

Answer :

The sound waves can't travel through the vacuum.

Option C) is the required Answer.

For their propogation sound waves require material medium to pass through it . But in a vacuum there is no medium . And that is why sound can't travel through the vacuum.