Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-fact-Hard-Class 11
What happens to the reflected wave when a pulse meets a rigid boundary?
A
The reflected wave undergoes a phase change of π.
B
The reflected wave has a greater amplitude than the incident wave.
C
The reflected wave travels in the opposite direction without any phase change.
D
The reflected wave is absorbed by the boundary and does not reflect.
Correct Answer
Option A
Detailed Explanation
When a pulse reflects off a rigid boundary, it undergoes a phase change of π (180 degrees) due to the boundary condition that requires zero displacement at the boundary, as explained in the NCERT context.
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