Question

In the outer space, there may be many “explosions” and “noises” taking place but we do

not hear them. This is because


(a) There is vacuum in outer space and sound cannot propagate through vacuum.


(b) There is air present in outer space and sound cannot propagate through air.


(c) There is air present in outer space and sound can propagate through air.

(d) There is vacuum in outer space and sound can propagate through vacuum​

Answer 1

Answer:

option (a)

Explanation:

sound needs a medium to propagate but as there is no medium in space we don't hear anything.

Answer 2

option (a) is correct answer