NEET Physics Wave Motion MCQ Question
Which of the following statements about wave motion and reflection is correct?
A wave reflects with a phase change of π at a rigid boundary and without phase change at a non-rigid boundary.
All waves require a medium for propagation, including electromagnetic waves.
The amplitude of a reflected wave at a rigid boundary is double that of the incident wave.
Phase change occurs at both rigid and non-rigid boundaries in the same manner.
Correct Answer
Detailed Explanation
A wave experiences a phase change of π when reflected from a rigid boundary, while it does not have a phase change at a free boundary. This is discussed in the context of wave reflection in the NCERT content.
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