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Question

A pulse of a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected back with :

A
a phase change of 180o with velocity reversed
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B
the same phase as the incident pulse with no reversal of velocity
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C
a phase change of 180o with no reversal of velocity
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D
the same phase as the incident pulse but with velocity reversed
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Solution

The correct option is A a phase change of 180o with velocity reversed
A pulse of wave train when travels along a stretched string and reaches the fixed end of the string, then it will be reflected back to the same medium and the reflected ray suffers a phase change of π with the incident wave but wave velocity after reflection reverses its direction.

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