A pulse or a wave train travels along a stretched string and reache...

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A pulse or a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected back with
[CBSE PMT 1997]
(a) The same phase as the incident pulse but with velocity
\( \mathrm{P} \) reversed
(b) A phase change of \( 180^{\circ} \) with no reversal of velocity
(c) The same phase as the incident pulse with no reversal of velocity
(d) A phase change of \( 180^{\circ} \) with velocity reversed
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