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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediumsingle choice

Two harmonic waves travelling in the same medium have frequency in the ratio 1 : 2 and intensity in the ratio 1 : 36. Their amplitude ratio is:

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Answer:

Solution:

$I \propto f^{2} A^{2}$ . $\frac{I _{1}}{I _{2}} = \frac{f _{1}^{2} A _{1}^{2}}{f _{2}^{2} A _{2}^{2}} = \frac{1}{4} \frac{A _{1}^{2}}{A _{2}^{2}} = \frac{1}{36}$ , so $\frac{A _{1}^{2}}{A _{2}^{2}} = \frac{1}{9}$ and $A_{1} : A_{2} = 1 : 3$ .

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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