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WAEC - Physics (2006 - No. 27)
a note of frequency 2000Hz has a velocity of 400 ms
-1
. calculate the wavelength of the note
5.0m
2.0m
0.5m
0.2m
Explication
\(\pi = \frac{v}{f} = \frac{400}{2000} = 0.2m\)
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