Question

Sound requires medium to travel justify experimentally​

Answer 1

Explanation:

Sound cannot travel through vacuum, it always need a medium to propagate. This Experiment Shows that : Sound cannot travel through vacuum, but can travel through air. Thus, a material medium is necessary for the propagation of sound...

Answer 2

Answer:

Sound requires a medium to travel and it can be

proven by the following experiment.

(a) Take a bell jar and suspend an electric bell in it.

(b) The bell jar is connected to a vacuum pump. Till

the air is in the bell jar, the sound of the electric

bell is louder.

(c) Now with the help of vacuum pump, suck out the

air from the jar gradually.

(d) As the air is getting pumped out, the sound of

the bell gets fainter and fainter.

(e) When the bell jar is completely vacuumed, no

sound can be heard.

(f) This shows that the air is required for the

propagation of sound.