A flat circular disc has a charge $ + Q$ uniformly distributed on the disc. A charge $ + q$ is thrown with kinetic energy $E$ towards the disc along its normal axis. The charge $q$ will

  • A

    Hit the disc at the centre

  • B

    Return back along its path after touching the disc

  • C

    Return back along its path without touching the disc

  • D

    Any of the above three situations is possible depending on the magnitude of $E$

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  • [AIIMS 2006]