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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediummultiple choice

A harmonic wave on a string has power $P = 2 π^{2} μv A^{2} f^{2}$ . Which changes raise $P$ by the stated factor (other quantities unchanged)?

Options:(select one or more)

Answer:

A, B, C

Solution:

$P \propto A^{2}$ and $f^{2}$ . $v \propto T$ , so $4 T$ gives $v \times 2$ . With $μ$ doubled at fixed $T$ , $μv \propto μ$ gives $2$ times, not 2 times.

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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