The distance between two successive crests of a wave is 15cm and the velocity 300ms-1. Calculate the frequency.
-
A.
2.0×102Hz -
B.
4.5×103Hz -
C.
2.0×103Hz -
D.
4.5×102Hz
Correct Answer: Option C
Explanation
Wavelength = 15cm = 0.15m
Velocity = 300m/s
V = fx
F = V/Wavelength
F = 300/0.15 Hertz
F = 2 x 103Hz
There is an explanation video available below.