Question

5. (i) A bell is ringing inside a bell jar if the air is gradually pumped out from
within the bells the sound becomes fainter and fainter why?


It's urgent....​

Answer 1

Answer:

mark me brainlinest

Explanation:

Sound needs a medium to travel. The vacuum pump pumps out the air, and thus the medium through which the sound travels is pumped out. So, the sounds gets fainter.

Answer 2

Answer:

This is because the medium (the air) is gradually pumped out from within the bell jar. Actually sound requires a material medium to propagate. so when air is pumped out, the area inside the the bell jar becomes vacuum.

Sound cannot travel in vacuum. So when the bells are contained air the sound was coming. Slowly when the air is being pump out, the sound becomes fainter and fainter. At last, no sound is heard because no air is left inside the bell jar.

HEY MATE! WROTE THIS FOR U!

HOPE THIS HELPS YOU!! ☺️✌️

$<marquee direction="up" scrollamount ="100">$

$\pink{\underline{Hola....Pls....Mark....Brainliest.....yrr}}$