Question

explain detail why sound needs a medium for propagation?

Answer 1

Sound is a mechanical wave is a wave that propagates as an oscillation of matter, and therefore transfers energy through a medium.A mechanical wave requires an initial energy input. Once this initial energy is added, the wave travels through the medium until all its energy is transferred.

Also, Sound, by definition, is vibration of medium. So, you can't imagine sound without a medium.

A sound source like hitting ball with bat vibrates the air molecules making sound wave. When this wave reaches your ear, it vibrates your ear drum which is processed by your brain.

Answer 2

Hey mate here is your answer

A sound wave needs a medium to travel. A sound wave travels in the form of a longitudinal wave and itrequires a material medium for itspropagation. Sound always originates from some vibrating body. ... The bell jar experiment is a common experiment used to demonstrate thatsound needs a medium to travel.


Hope my answer help you