Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphEasy2 minPYQ_2020

PhysicsEasysingle choice

Two waves represented by the following equations are travelling in the same medium

$y_{1} = 5 \sin 2 π (75 t - 0 .25 x)$

$y_{2} = 10 \sin 2 π (150 t - 0.50 x)$

The intensity ratio $\frac{I_{1}}{I_{2}}$ of the two waves is

Options:

Answer:

Solution:

$I = \frac{1}{2} {ρω}^{2} A^{2} v$

$\frac{I_{1}}{I_{2}} = \frac{ω_{1}^{2} A_{1}^{2}}{ω_{2}^{2} A_{2}^{2}}$

$\frac{I_{1}}{I_{2}} = {(\frac{75}{150})}^{2} {(\frac{5}{10})}^{2}$

$\frac{I_{1}}{I_{2}} = \frac{1}{16}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave on StringSubtopic:Equation/graph

⏱ 2mℹ️ Source: PYQ_2020

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