Question

Q : The wavelength of waves produced on the surface of
water is 20 cm. If the wave velocity is 24 m/s,
calculate : (i) the number of waves produced in one
second, and (ii) the time in which one wave is produced​

Answer 1

Given wavelength(lamda)=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=lamda*frequency

hence,f=v/lamda

f=24/0.2

=120

2)time=1/f

=1/120

=0.008