Answer:
The frequency of the wave can be calculated using the formula f = 1 / T where T is the time required for energy to be transferred from point A to point B.
In this case, since energy is transferred in a time of 2.5 x 10^(-2) seconds, the frequency is calculated as
f = 1 / 2.5 x 10^(-2)
which equals
f = 4 Hz
Explanation:
hope this helps :3
