Q111 / 180 · AIIMS 2013 · Physics

Assertion : ${ }_{27}^{60} \mathrm{Co}$ is a source of gamma radiation. Reason : Gamma emission is due to nuclear decay.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
  • Correct answer
    C
    If assertion is true but reason is false.
  • D
    If both assertion and reason are false.

Solution

The emission of $\gamma$ rays by a ${ }_{27}^{60} \mathrm{Co}$ nucleus is subsequent to beta decay.

Hence, the correct answer is option: 'C'.

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