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: Option C
Explanation
21/2λ = 3m; λ = 1.2m v= 300
f = v/x = 300/1.2 = 250Hz