Q2. What is noise pollution
Q3. A body vibrates 100 times in 20 seconds. Calculate the time period of the
vibrating body
(1)
Q4. Define electrostatic force and write its one practical application,
(2)
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Answer:
Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.
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Answer:
A2. Noise pollution is considered to be any unwanted or disturbing sounds.
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