The diagram above represents part of a wave motion in air...
The diagram above represents part of a wave motion in air. If the wave travels with a speed of 300ms-1calculate the frequency of the wave.
A.
360Hz
B.
300Hz
C.
250Hz
D.
150Hz
E.
100Hz
Correct answer is C
21/2λ = 3m; λ = 1.2m v= 300
f = v/x = 300/1.2 = 250Hz
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