The frequency of the wave in the diagram above is
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The frequency of the wave in the diagram above is
A.
0.17 Hz
B.
0.25 Hz
C.
1.57 Hz
D.
1.05 Hz
Correct answer is B
Generally, period T = 1/f(reciprocal of frequency).
=> f = 1/T
And from the diagram, period T = 4s
∴ frequency, f = 1/T = 1/4 = 0.25 Hz