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The tension in a wire is decreased by 19...

The tension in a wire is decreased by `19%` The
percentage decrease in frequency will be

A

0.19

B

0.1

C

0.0019

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Frequency in transverse wave
`n = 1/(2l) sqrt(T/mu)`
`n_(2)/n_(1) = sqrt(T_(2)/T_(1)) = sqrt(81/100) = 9/10`
`therefore ((n_(1)-n_(2))/n_(1)) xx 100 = 10%`
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