Question

during an activity,a ringing bell is kept inside a bell jar. then the air is removed from the bell jar. the sound of the ringing bell gradually becomes inaudible. why?

(a)the bell stops vibrating
(b)the midium is absent
(c)sound travels slower in air
(d)bell jar absorbs the sound​

Answer 1

Answer:

B) The medium is absent

Explanation:

Sound needs a medium for moving and there is no air(medium) inside the gas because air has been vacumed from the jar. Hence the ringing bell becomes inaudible.