The frequency of the wave in the diagram above is
...
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
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