Question

the frequency of the fundamental tone of 1 m long string of a guitar is 256 Hz. at how much distance from the upper end should the string be pressed to produce a note of frequency 384 Hz​

Answer 1

it should be like..

Solution :

f∝1l

∴f1f2=l2l1 or l2=(f1f2)l1

= (124186)(90cm)=60cm .

so it should be pressed at distance of 60cm.

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