A source of wave produces 60 compression and 60 rarefaction in 1 second the frequency of wave is ___________.
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Frequency of wave is defined as the number of waves produced in 1 second. A longitudinal wave is formed by one compression and one rarefaction, we have 60 compressions and 60 rarefactions in 0.6s i.e. 60 waves produced in 0.6s,
In 0.6s the number of wave produced =60
In 1s the number of wave produced =
0.6
60
=100Hz
Therefore , frequency f=100Hz
Here, the distance given between a compression and the next (consecutive) rarefaction is of no use. It is wavelength. We need only number of waves and time to calculate frequency.
Explanation:
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