SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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deepunder water.
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high in the air.
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in a solid piece of granite.
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in outer space.
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Detailed explanation-1: -A place where the equipment would NOT be affected by sound waves is. deep under water.
Detailed explanation-2: -Take an electric bell and an airtight glass bell jar. The electric bell is suspended inside the airtight bell jar. The bell jar is connected to a vacuum pump. If you press the switch you will be able to hear the bell.
Detailed explanation-3: -The experiment is done by placing an electrical bell in the bell jar. As the air is pumped out of the sealed bell jar, the sound from the bell jar fades. At a particular vacuum, no more sound is heard from the bell, but we can see that the hammer continues hitting the gong and sound is produced.
Detailed explanation-4: -Bell Jar Experiment Place an electrical bell in the bell jar and pump out the air of the sealed bell jar. Turn on the electric bell. The sound produced by the bell is not audible to our ears. This demonstrates that the sound waves cannot travel through vacuum and it needs a material medium for its propagation.