A tuning fork of frequency 280Hz produces 10 beats per sec when sounded with a vibrating sonometer string (in fundamental mode). When the tension in the string increases slightly, it produces 11 beats per sec. The original frequency of the vibrating sonometer string in Hz is:
Given frequency of tunning fork
Let the original frequency of the sonometer is
Since number of beats produced is 10
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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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