Some radioactive nucleus may emit

  • [IIT 1986]
  • A

    Only one $\alpha ,\;\beta $ or $\gamma $ at a time

  • B

    All the three $\alpha ,\;\beta $ and $\gamma $ one after another

  • C

    All the three $\alpha ,\;\beta $ and $\gamma $ simultaneously

  • D

    Only $\alpha $ and $\beta $ simultaneously

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