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If the vibration length of a string is i...

If the vibration length of a string is increased by 20% then its first overtone frequency in comparison to the original first overtone frequency will decrease by

A

0.4

B

0.16

C

0.2

D

0.32

Text Solution

Verified by Experts

The correct Answer is:
B
`n_2/n_1 = l_1/l_2 = (l_1)/(1.2l_1) = 10/12 = 5/6`
`(n_2-n_1)/(n_1) = (5-6)/(6) = (-1)/(6) = - 16.66%`
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