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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesHard2 minQB

PhysicsHardsingle choice

A string with $μ = 0.01$ kg/m under tension 100 N carries a sine wave of amplitude 2 cm. The source can deliver at most 20 W. Taking $π^{2} = 10$ , the highest frequency is:

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Answer:

Solution:

$v = 100/0.01 = 100$ m/s. $20 = \frac{1}{2} (0.01) ω^{20.02^{2}} (100) = 2 \times 1 0^{- 4} ω^{2}$ , so $ω^{2} = 1 0^{5}$ . $f^{2} = 1 0^{5} /40 = 2500$ and $f = 50$ Hz.

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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