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The diagram above shows a waveform in which energy is tra...

The diagram above shows a waveform in which energy is transferred from A to B in a time of 2.5 x 10-3s. Calculate the frequency of the wave

The diagram above shows a waveform in which energy is transferred from A to B in a time of 2.5 x 10-3s. Calculate the frequency of the wave

A.

2.0 x 103Hz

B.

1.0 x 103Hz

C.

4.0 x 10-2Hz

D.

1.0 x 10-3Hz

E.

5.0 x 104Hz.

Correct answer is B

The waveform moved from A to B in 2.5×103 seconds.

From the diagram, A to B has 212 complete oscillations between it, Therefore, the period of the oscillation is

2.5×1032.5=1×103s

Frequency=1Period

= 11×103=1×103Hz