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Question 31320
JEE Physics · Hard

Waves on String: Power in Waves MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Power in WavesHardQuestion 31320

Question

A transverse wave on string carries energy. At a node of a standing wave, instantaneous energy flow:
  1. A
    Is maximum
  2. B
    Is zero
    Correct
  3. C
    Flows toward antinode
  4. D
    Flows away from antinode

Correct answer

Is zero

Explanation

At a node, displacement = 0 always and transverse velocity = 0. No energy flows past a node in a standing wave.

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