A pulse on a string is shown in the figure. \( P \) is particle of the string. Then state which ...

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A pulse on a string is shown in the figure. \( P \) is particle of the string. Then state which of
\( P \) the following is incorrect.

W
(1) If \( P \) is stationary point, then pulse consists of two waves travelling in opposite direction
(2) If \( P \) is moving upwards, then pulse is travelling in positive direction
(3) If \( P \) is moving downwards, then pulse is travelling in negative direction
(4) none of these
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