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

815-454

  • A

    If $P$ is stationary point, then pulse consists of two waves travelling in opposite direction

  • B

    If $P$ is moving upwards, then pulse is travelling in positive direction

  • C

    If $P$ is moving downwards, then pulse is travelling in negative direction

  • D

    none of these

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