question_answer

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 [MP PMT 1995]

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