Question

The wavelength of waves produced on the surface of water is 20 cm. If the wave velocity is 24 m $s^{-1}$, calculate :

(i) the number of waves produced in one second,

(ii) the time in which one wave is produced.

Answer 1

Given wavelength$\lambda$=20cm=0.2m
wave velocity(v)=24m/s

1)No.of waves produced in one second
in any wave frequency is equal to no.of waves

from the equation

v=$\lambda$*frequency

hence,f=
f=
=120
2)time=
=
=0.008