Answer: The correct answer is 0.11 Hz.
Explanation:
The relation between frequency of the wave and time period is as follows;
[tex]f=\frac{1}{T}[/tex]
Here, f is the frequency of the wave and T is the time period.
Here, the frequency is inversely proportional to the time period.
It is given in the problem that a wave has a wavelength of 45 meters and a period of 9.0 seconds.
Calculate the frequency of the wave.
[tex]f=\frac{1}{T}[/tex]
Put T= 9 s.
[tex]f=\frac{1}{9}[/tex]
f=0.11 Hz
Therefore, the frequency of the wave is 0.11 Hz.
