Is it true that an electric bell inside a closed glass jar connected with a vacuum pump will create no sound?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
An electric bell inside a closed jar connected with a vacuum pump will not create sound because there is no air in the glass jar, and the sound wave needs a medium to propagate. Sound is formed up of vibrations, and because there are no particles in a vacuum, no sound is produced.
An electric bell is suspended in an airtight vacuum jar. The bottom of the jar is connected to an air pump, as shown in the given figure. The air pump can fill

An electric bell is suspended in an airtight vacuum jar. The bottom of the jar is connected to an air pump, as shown in the given figure. The air pump can fill

A sound wave is also a mechanical wave as it requires a medium for propagation. It is a type of energy that produces the sensation of hearing. It is produced due to the vibrations of different objects. Some examples are stretched vibrating wires and vibrating drums, etc.

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