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A length of wire has frequency of 256 Hz...

A length of wire has frequency of 256 Hz when stretched by a force of 16 kg wt. By what factor must the force of be changed so that it emits a note of frequency 320 Hz ?

A

25 kg-wt

B

9 kg-wt

C

3 kg-wt

D

5 kg-wt

Text Solution

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The correct Answer is:
B
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