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A sonometer wire of length 30 cm vibrate...

A sonometer wire of length `30 cm` vibrates in the second overtone
A violin string resonates in its fundamental frequency of `196hz`.Where along the string must you place your finger so that the fundamental frequency becomes `440hz` ,If the length of violin string is `40 cm`.

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A wire stretched between two rigid supports vibrates in lts fundamental mode with a frequency of 45Hz . The mass of the wire is 3.5x 10^(-2)kg and its linear mass density is 4.0 x 10^(-2)kgm^(-3)'. What is the tension in the string?

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