Respuesta :
A. 0.5 hz because frequency os the amount of waves that pass per one second.
Answer:
b. 2Hz
Explanation:
Frequency is defined as the number of wavelengths passing a particular point per second.
If 3 crests pass a point in two seconds, then we know that 6 crests pass the point per second.
Therefore 2 wavelengths pass the point per second, and hence the frequency of the wave is 2Hz.
