6. An alarm bell is kept inside a vessel as shown in Fig. 13.1. A person standing close to it can distinctly hear
the sound of alarm. Now if the air inside the vessel is removed completely how will the loudness of alarm get
affected for the same person?
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Answer :
as you know that sound cannot travel in space because there is no air so if the vessel is there and there is a a alarm clock in inside so when the will be removed obviously the sound cannot travel so same person would not be able to hear the sound of the alarm clock as before.
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