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JEE Physics · Medium

Waves on String: Reflection MCQ

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

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ReflectionMediumQuestion 31306

Question

A wave pulse travelling from a lighter to a heavier string at a junction:
  1. A
    Is entirely transmitted
  2. B
    Is entirely reflected inverted
  3. C
    Is partially transmitted and partially reflected (inverted)
    Correct
  4. D
    Is absorbed

Correct answer

Is partially transmitted and partially reflected (inverted)

Explanation

At a denser boundary: part reflects with inversion (phase change π), part transmits without inversion. Speed decreases in denser (heavier) string.

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