Question

Which one of the following statement is not correct regarding the travel of sound waves?

(a) Sound waves can travel through water.

(b) Sound waves can travel through air.

(c) Sound waves can travel through steel.

(d) Sound waves can travel through vacuum.

Answer 1

(d) Sound waves can travel through vacuum

Sound waves need a medium to travel. In vacuum, there is no medium, hence sound waves cannot travel through vacuum.