Question

The nuclide $X$ undergoes $\alpha$-decay and another nuclides $Y$ undergoes ${\beta }^{\ominus }$-decay, which of the following statements is/are correct?

• A. The ${\beta }^{\ominus }$-particles emitted by $Y$ may have widely different speeds.
• B. The $\alpha$-particles emitted by $X$ may have widely different speeds.
• C. The $\alpha$-particles emitted by $X$ will have almost same speed.
• D. The $\beta$-particles emitted by $X$ will have almost same speed.

Answer 1

Answer: (B), (C)

Correct answer is (b) The $\alpha$-particles emitted by $X$ may have widely different speeds. Correct answer is (c) The $\alpha$-particles emitted by $X$ will have almost same speed.