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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediumsingle choice

A wire of length $L$ , tension $T$ and radius $r$ has fundamental frequency $f$ . A wire of the same metal with length $L /2$ , tension $4 T$ and radius $2 r$ has fundamental frequency:

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Answer:

Solution:

Length $L /2$ doubles the frequency. $μ \propto r^{2}$ gives $4 μ$ and tension $4 T$ , so $T / μ$ is unchanged. Hence $f' = 2 f$ .

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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