Question

Arrange the following particles in increasing order of values of \( e/m \) ratio: electron (e), proton (p), neutron (n) and \( \alpha \)-particle (\( \alpha \)):

• A. \( n, p, e, \alpha \)
• B. \( p, e, n, \alpha \)
• C. \( e, p, n, \alpha \)
• D. \( e, p, \alpha, n \)

Hint:

The \( e/m \) ratio is highest for the electron and lowest for the \( \alpha \)-particle.

Answer 1

The Correct Option is C

The ratio \( e/m \) for the electron is the highest, followed by the proton, neutron, and finally the \( \alpha \)-particle (which has a higher mass). Therefore, the increasing order is \( e, p, n, \alpha \).
Final Answer: \[ \boxed{e, p, n, \alpha} \]