Suppose the pulley absorbs a significant fraction of the energy in the wave so t

Question

Suppose the pulley absorbs a significant fraction of the energy in the wave so that the amplitude of the reflected wave is not equal to the amplitude of the wave set up by the vibrator. How will the standing waves differ from those Established under conditions of perfect reflection? Hint: remember what happens to the nodes when you add two waves of different amplitude. Will their superposition by zero? Suppose the pulley absorbs a significant fraction of the energy in the wave so that the amplitude of the reflected wave is not equal to the amplitude of the wave set up by the vibrator. How will the standing waves differ from those Established under conditions of perfect reflection? Hint: remember what happens to the nodes when you add two waves of different amplitude. Will their superposition by zero?

Explanation / Answer

Amplitude at node is not exactly equal to zero and is not exactly equal to twice at aninode.

superposition is not zero

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