Question

describe an activity to show that sound requires a material medium for its propagation ​ plz plz help emergency

Answer 1

Answer:

The experiment Done by placing an electrical bell in the bell jar.... However the sound is not audible to our ears because of the vaccum inside the jar . This demonstrate that the sound wave can't travel thought vaccum. That is a sound wave needs a material medium for its propagation..

Explanation:

i hope it helps you ...

Answer 2

Answer:

as when we keep an phone in vaccum it we ring it we will not be able to hear sound of ringing and if we keep it in any other place we will able to hear