to show that sound can travel through air but not through vaccum
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A ringing bell is placed inside the airtight glass jar Containing air.
When all the air is removed from the glass jar, no sound can be heard at all. Thus, when the vaccum is created in the glass jar then the sound of ringing bell placed inside it cannot be heard. This show sound can't be travel through vaccum.
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Answer:
if we shout in vaccum we can't hear voice from another man
but in the earth we are hearing
so because of air the sound waves are traveling from one place to another place
so sound travels through air
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