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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesHard2 minQB

PhysicsHardsingle choice

Three waves are $w_{1} = B sin (k x - ω t)$ , $w_{2} = B sin (k y + ω t)$ and $w_{3} = B sin (k x + ω t)$ . Which sum is a standing wave?

Options:

Answer:

Solution:

$w_{1}$ and $w_{3}$ travel in opposite directions along $x$ with equal amplitude and wave number, so $w_{1} + w_{3} = - 2 B cos k x sin ω t$ is a standing wave.

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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