A wave has a velocity when a vibrating object is not moving or propagating from one place to another. The velocity of a wave defines how fast a wave propagates.
1. v = λ (wavelength) / s (distance to be covered)
t (period of the wave) t (covering time)
2. v = λ (wavelength) x f (frequency)
Questions including answers of the two formulas:
2nd Formula
The velocity of a wave is 50 m/s. If the wavelength is 10 m, what is the frequency of that wave?
v = λf so f = v
λ
f = 50 m/s = 5 Hz
10 m
1st Formula
Given: distance to be covered = 6λ
time needed = 4 s
Find: velocity
v = 6 = 1.5 m/s
4
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