Taking into account the definition of wavelength, frecuency and propagation speed, the frequency is 5 Hz.
Wavelength (λ) is the distance between two consecutive points that are in the same state of vibration (the state of vibration is called phase). It is expressed in units of length (m).
Frequency (f) is the number of waves per unit of time and is normally expressed in Hertz (Hz) which is the number of waves per second.
The velocity of propagation is the speed with which the wave propagates in the medium. Relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:
v = f * λ
In this case, you know:
Replacing in the previous expression:
50 m/s= f× 10 cm
Solving;
f= 50 m/s÷ 10 cm
f= 5 Hz
Finally, the frequency is 5 Hz.
Learn more:
