NDA 2021 Physics question

Physics Waves NDA 2021

Which among the following is true for propagation of sound waves ?

(A)Sound can travel in vacuum and it is a transverse wave in air.
(B)Sound cannot travel in vacuum and it is a longitudinal wave in air.Correct
(C)Sound can travel in vacuum and it is a longitudinal wave in air.
(D)Sound cannot travel in vacuum and it is a transverse wave in air.

Answer: (B)

Solution

Sound is a mechanical wave and needs a medium, so it cannot travel in

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-031980