A transverse wave strike against a wall, (a) its phase changes by 180° but velocity does not change (b) its phase does not change but velocity changes (c) its velocity changes and phase changes by 180° (d) nothing can be predicted about changes in its velocity and phase

Answer: (a). A wall is a rigid (denser) boundary, so the reflected wave is inverted: phase change of 180°. The reflected wave travels back in the same medium, so its speed is unchanged. So the answer is (a).

A transverse wave strike against a wall, | MHT CET 2023 (13 May, Shift 2)

Q9MHT CET 2023 · 13 MAY · SHIFT 2Easy

Reflection, Superposition & Interference

A transverse wave strike against a wall,

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Answer: (a)

A wall is a rigid (denser) boundary, so the reflected wave is inverted: phase change of $180^\circ$ .
The reflected wave travels back in the same medium, so its speed is unchanged.
So the answer is (a).

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