Physics-Wave Motion

NEET Physics Wave Motion MCQ Question

Type: MCQ-fact-Medium-Class 11

What is the phase change experienced by a wave upon reflection from a rigid boundary?

A

π (180 degrees)

B

0 degrees

C

π/2 (90 degrees)

D

2π (360 degrees)

Correct Answer

Option A

Detailed Explanation

When a wave reflects off a rigid boundary, it undergoes a phase change of π (180 degrees) due to the boundary condition that requires zero displacement at all times at the boundary.

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