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