Question

How would you show that sounds need medium to propagate

Answer 1

Through the activity of electric bell..Which is given in the 9th ncert text book

Answer 2

Hèy màte here is your answer :-

Sound cannot propagate in vaccum because there is no air or other mediam to sound waves so it cannot propagate.

sound can be heard in water also and in air also so sound need medium to propagate