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Question

The time period of a source of sound is 0.01 s. How many times does it vibrate in a minute?

A
6000 times
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B
600 times
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C
1000 times
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D
100 times
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Solution

The correct option is A 6000 times

Time period of the sound source = 0.01 s (Given)
We know that,
Frequency = 1Time period
= 10.01
= 100 Hz
It means the source of sound vibrates 100 times in one second.
Therefore, the number of vibrations in 1 minute, i.e. in 60 seconds
= 100 x 60 = 6000 times.

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