Question

Consider the following statements:
(A) Nuclear force is charge-independent.
(B) Radioactivity which is the spontaneous emission of $(\alpha ,\beta ,\gamma )$ particles is often influenced by chemical or
physical processes.
(C) A free neutron is unstable whereas a free proton is stable.
(D) Half-life time of $x$ radioactive element is fifty percent of its average life period.
Which of the above statement/s is/are
correct?

• A. (A) only
• B. (A) and (C)
• C. $\left(A\right),\left(C\right)$ and $\left(D\right)$
• D. (B) and (C)

Answer 1

The correct option is A (A) only

Nuclear force is charge-independent.

so the correct option is A.