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Question 31224
JEE Physics · Easy

Sound Waves: Reflection MCQ

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ReflectionEasyQuestion 31224

Question

At a rigid (closed) boundary, a sound pulse is reflected with:
  1. A
    No phase change
  2. B
    Phase change of π (inversion)
    Correct
  3. C
    Double amplitude
  4. D
    Half amplitude

Correct answer

Phase change of π (inversion)

Explanation

Reflection at a rigid boundary causes phase reversal (phase shift of π or 180°). At a free/open boundary, there is no phase change.

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