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CBSE Class 9 Answered

The frequency of a source of sound is 100Hz.How many times does it vibrate in a minute?
Asked by | 12 Jan, 2013, 12:42: PM
answered-by-expert Expert Answer

Frequency is defined as the number of oscillations per second. It is given by the relation:


Number of oscillations = Frequency × Total time

Given, Frequency of sound = 100 Hz

Total time = 1 min = 60 s

Number of oscillations/Vibrations = 100 × 60 = 6000

Hence, the source vibrates 6000 times in a minute, producing a frequency of 100 Hz.

Answered by | 12 Jan, 2013, 06:54: PM

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