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)
detailed solution
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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