The speed of a wave is 40 m/s. If the wavelength is 80 centimeters, what is the frequency of the wave ?
Velocity (V) = 40 m/s
Wavelength [tex] (\lambda) [/tex] = 80 cm = 0.8 m
The frequency (F) of the wave.
We know,
[tex] \bf V \: = \: F \: × \: \lambda [/tex]
40 = F × 0.8
F = [tex] \frac{40}{0.8} [/tex]
F = 50
