What are (a) the lowest frequency, (b) the second lowest frequency, and (c) the third lowest frequency for standing waves on a wire that is 6.93 m long, has a mass of 59.6 g, and is stretched under a tension of 468 N?
Solution)
We know,
F= n(1/2L) ( root(TL/m)
For, lowest frequency, n=1
So, f= 1(1/2*6.93)(root(468*6.93/0.596)
F= 5.322 hz (Ans)
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B) for n=2
We get, F= 10.64 Hz
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C) for n=3
We get, F= 15.96 Hz
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Good luck!:)
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answers are below
'C' = 100 m/s
'D' = 6000 N
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