At a specific instant emission of radioactive compound is deflected in a magnetic field . The compound can emit
(i) electron (ii)protons(iii)`He^(2+ )`(iv) neutrons
The emission at instant can be

Options

A. (i), (ii), (iii), (iv)
B. (iv)
C. (ii), (iii)
D. (i), (ii), (iii)

Answer

D

Explanation

The neutrons are uncharged. Hence they are not defected by the magnetic field. Hence the emission can be electrons, protons and `He^(2+) (alpha " particles ").`