PDF chapter test TRY NOW
An alarm bell is kept inside a vessel as shown in Figure. A person standing close to it can distinctly hear the sound of the alarm. Now if the air inside the vessel is removed completely how will the loudness of alarm get affected for the same person?
Sound needs to get transmitted.
Initially, the person is the sound coming from air. But once the air is completely removed from the bottle, the sound to travel as it will be the vacuum and to man.
So, the man the sound which was coming through the air initially.
Register for free to see more content