Question

Assertion: $\begin{array}{c}60\\ 27\end{array}Co$ 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.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (C)

The emission of $\gamma$ rays by a $\begin{array}{c}60\\ 27\end{array}Co$ nucleus is subsequent to beta decay.