Describe an experiment to show that sound cannot travel through vacuum?

Question: Describe an experiment to show that sound cannot travel through vacuum?

One possible experiment to show that sound cannot travel through vacuum is as follows:

- Take a glass jar with a lid and a small electric bell inside it. Connect the bell to a battery outside the jar with wires.

- Switch on the bell and hear the sound it produces.

- Now, attach a vacuum pump to the jar and start removing the air from it. Observe what happens to the sound of the bell as the air pressure inside the jar decreases.

- When the jar is almost empty of air, you will notice that the sound of the bell becomes very faint or even inaudible. This is because there is no medium for the sound waves to travel through in vacuum.

- Switch off the bell and release the air back into the jar. You will hear the sound of the bell again as the air fills up the jar and provides a medium for sound transmission.

This experiment demonstrates that sound cannot travel through vacuum because it needs a material medium to propagate.

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