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I NEED HELP DESPERATELY!!!!!!!!!!!!!!!!!! If 20 waves pass a fixed point in 5 seconds, the frequency of the wave is....What???

Answer :

Answer:

Frequency, f = 4 Hz

Explanation:

We have,

Number of waves passing a fixed point are 20

Time, t = 5 seconds

It is required to find the frequency of the wave. Frequency of a wave is defined as the number of waves passing through a point per second. Its mathematical form is given by :

[tex]f=\dfrac{n}{t}\\\\f=\dfrac{20}{5}\\\\f=4\ Hz[/tex]

So, the frequency of the wave is 4 Hz.

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