MHT CET Physics question

A pulse of a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected with [MHTCET 2007, MHTCET 2007]

(A)a phase change of with velocity reversedCorrect
(B)the same phase as the incident pulse with no reversal of velocity
(C)a phase change of with no reversal of velocity
(D)the same phase as the incident pulse but with velocity reversed

Answer: (A)

Solution

At a fixed end the string cannot move, so the reflected pulse is inverted (phase change of ) and it travels back, so its velocity is reversed;

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Question ID VK-068686