Answer:
C) 0.20 Hz
Explanation:
A wave is a periodic disturbance of the space that carries energy without carrying matter.
The frequency of a wave is the number of oscillations completed by the wave per second.
It can be calculated using the formula:
[tex]f=\frac{N}{t}[/tex]
where
N is the number of oscillations
t is the time taken to complete the oscillations
For the wave in this problem we have:
N = 6 is the number of complete oscillations
t = 30 s is the time taken for these 6 oscillations to occur
Therefore, the frequency of the wave is:
[tex]f=\frac{6}{30}=0.20 Hz[/tex]
