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A string of linear density 10^(-3)kg//m ...

A string of linear density `10^(-3)kg//m` and length `0.5` m is under the tention of `19.6` N. What is the frequency of its fundamental note ?

A

70 Hz

B

140 Hz

C

100 Hz

D

280 Hz

Text Solution

Verified by Experts

The correct Answer is:
B
`n = 1/(2L) sqrt(T/m) = 1/(0.5 xx 2) sqrt((19.6)/10^(-3)) = 140 ` Hz
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