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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediummultiple choice

Two simple harmonic waves are $y_{1} = 0.3 sin (314 t - 1.57 x)$ and $y_{2} = 0.1 sin (314 t - 1.57 x + 1.57)$ , where $y_{1}$ and $y_{2}$ are in metre and $t$ in second:

Options:(select one or more)

Answer:

A, B, C, D

Solution:

$f = 314/2 π = 50$ Hz for both. $λ = 2 π /1.57 = 4$ m. $I \propto A^{2}$ so $I_{1} / I_{2} = 3^{2} = 9$ . $1.57 \approx π /2$ , so $y_{2}$ leads $y_{1}$ by $π /2$ .

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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