Question

1. An electric bell is suspended in a bell jar and
then air is removed from it. On switching on
the electric bell, the sound heard is:
(a) very loud. (b) normal sound.
(c) weak sound .
(d) no sound is heard.
answer me I will mark you as brilliant it's urgent. and if you don't know the answer please,don't write rubbish​

Answer 1

Answer:

When electric bill is suspended in a bell jar and the air is removed from it then there will be no air and there will be the presence of vaccum. Sound needs a medium to travel through and it can't travel through vacuum so the option d is correct no sound is heard.

Answer 2

D) no sound is heard