Physics
WAEC 2006
The distance between the successive crests of a wave travelling at 20ms
-1 is 25cm. Calculate the frequency of the wave
-
A.
0.8Hz
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B.
5.0Hz
-
C.
50.0Hz
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D.
80.0hz
Correct Answer: Option D
Explanation
f = \(\frac{v}{\pi} = \frac{20}{0.25} = 80Hz\)
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