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Question
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
If the wavelength of the transverse wave is 32 mm, calculate the speed with which wave travels across the surface of the water.
Solution
Frequency = f = 8Hz
Wavelength = λ = 32 mm = 32 × 10-3 m
Speed = v = ?
We know, v = λf
v = 32 × 10-3 × 8
v = 256 × 10-3 ms-1
v = 256 × 10-3 × 102 cms-1
v = 256 × 10-1 cms-1
v = 25.6 cms-1
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