The frequency of a source of sound is $100\ Hz$. How many times does it vibrate in a minute?

AcademicPhysicsNCERTClass 9

Given: The frequency of a source of sound is $100\ Hz$.

To do: To find the number of vibrations in a minute.

Solution: 

Given that,

Frequency $=100\ Hz$

It is known that the number of vibrations in a second is called frequency.

Therefore, the source of sound vibrates $100$ times in one second if the frequency of a source of sound is $100\ Hz$.

Therefore, number of vibrations in 1 minute $=100\times 60$     [$\because 1\ minute=60\ seconds$ ]

$=6000\ times$
raja
Updated on 10-Oct-2022 13:23:15

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