CBSE Class 9 Answered
In a ripple tank, 10 ripples are produced per second. If the distance between a trough and a neighbouring crest is 12 cm, calculate the frequency, wavelength and velocity of the wave
Asked by SINDHUJA SRIVASTAVA | 09 Mar, 2015, 12:00: PM
Expert Answer
Frequency = Number of ripples produced per second
That is,
Frequency, f = 10 Hz
The frequency of the wave is 10 Hz.
Wavelength, l = 2 × 12 cm = 24 cm = 0.24 m
The wavelength of the wave is 0.24 m.
Velocity of the wave = Frequency × wavelength
v = f × λ
= 10 × 0.24
= 2.4 m/s
The velocity of the wave is 2.4 m/s.
Answered by Yashvanti Jain | 11 Dec, 2017, 07:22: PM
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