Question

Consider the following particles:
(A) Proton,
(B) α-particle,
(C) Electron.
For charge to mass ratio of the above particles, we can say:

• A. (C) $>$ (A) $>$ (B)
• B. (A) $<$ (C) $<$ (B)
• C. (B) = (A) $>$ (C)
• D. (C) = (B) $>$ (A)

Answer 1

Answer: (A)

(C) $>$ (A) $>$ (B)

Answer 2

$\text{ The charge-to-mass ratio } \left( \frac{q}{m} \right) \text{ is highest for an electron because it has a small mass and a unit charge.} \\\ \text{ For the proton, } \frac{q}{m} \text{ is less than the electron due to its higher mass, and for the } \alpha\text{-particle, } \frac{q}{m} \text{ is the lowest because it has twice the charge of a proton but four times the mass.}$