A piano wire 0.5m long has a total mass of 0.01kg and is ...
A piano wire 0.5m long has a total mass of 0.01kg and is stretched with a tension of 800N. Calculate the frequency of the wire when it sounds its fundamental note
200Hz
100Hz
4Hz
2Hz
Correct answer is A
F = 12L√Tm
N:B m is mass per length
= 0.010.5
= 0.02kgm-1
F = 12×0.5√8000.02
= 200Hz
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