The speed of a wave in a certain medium is 900 m/s. If 3000 waves passes over a certain
point of the medium in 2 minutes, then compute its wavelength?
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Answer:
Velocity = n Lemda
lemda = 900/n
n = frequency = No of waves /Time
n = 3000/120 = 25
lemda = 900/25
Lemda = 36
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