Questions
A 1 cm long string vibrates with fundamental frequency of 256 Hz. If the length is reduced to keeping the tension unaltered, the new fundamental frequency will be (in Hz)
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Correct option is D
n∝1l⇒n2n1=l1l2⇒n2=l1l2n1=1×2561/4=1024 HzSimilar Questions
A wire having a linear density of 5 g/m is stretched between two rigid supports with a tension of 450 N. It is observed that the wire resonates at a frequency of 420 Hz. The next highest frequency at which the same wire resonates is 490 Hz. Find the length of the wire. (in m)
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