the frequency of a wave having wavelength 20cm and velocity 0.5m/s is
f=speed/wavelength= .5/.2 = ...
a sound a source travels at a speed of 20 m/s and has a wavelength of 0.5 m what is its frequency?
To find the frequency of a wave, you can use the formula:
Frequency = Velocity / Wavelength
In this case, the given wavelength is 20 cm, which you should convert to meters by dividing it by 100 (since there are 100 centimeters in a meter):
Wavelength = 20 cm / 100 = 0.2 m
The given velocity is 0.5 m/s.
Now, you can plug these values into the formula:
Frequency = 0.5 m/s / 0.2 m
Frequency = 2.5 Hz
Therefore, the frequency of the wave is 2.5 Hz.