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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediumsingle choice

A wire of length $L$ having tension $T$ and radius $r$ vibrates with fundamental frequency $f$ . Another wire of the same metal having length $2 L$ , tension $2 T$ and radius $2 r$ will vibrate with fundamental frequency:

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Answer:

Solution:

$f = \frac{1}{2 L} T / μ$ and $μ \propto r^{2}$ . New: $f' = \frac{1}{2 ( 2 L )} 2 T / (4 μ) = \frac{f}{2} \cdot \frac{1}{2} = \frac{f}{2 2}$ .

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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