The diagram above represents part of a wave mot... - WAEC Physics 1990 Question
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
correct option: c
21/2λ = 3m; λ = 1.2m v= 300
f = v/x = 300/1.2 = 250Hz
f = v/x = 300/1.2 = 250Hz
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