Question

Consider the following statements:

Statement 1: Radioactivity is affected by external agents like temperature, pressure, electric and magnetic fields etc.

Statement 2: The activity of the material has been shown to be the result of the three different kinds of radiations $\alpha$, $\beta$, and $\gamma$.

• A. Both statement 1 and statement 2 are true.
• B. Both statement 1 and statement 2 are false.
• C. Statement 1 is true; Statement 2 is false.
• D. Statement 1 is false; Statement 2 is true.

Answer 1

The correct option is D

Statement 1 is false; Statement 2 is true.

Radioactivity is a spontaneous process which is not affected by external agents like temperature, pressure, electric and magnetic fields etc. So, statement 1 is false. However it is a result of the three different kinds of radiations $\alpha$, $\beta$, and $\gamma$. So, statement 2 is true.