Question

The specific charge of a proton is $9.6\times {10}^{7}C/kg$. The specific charge of an alpha particle will be:

• A. $9.6\times {10}^{7}C/kg$
• B. $19.2\times {10}^{7}C/kg$
• C. $4.8\times {10}^{7}C/kg$
• D. $2.4\times {10}^{7}C/kg$

Answer 1

The correct option is C $4.8\times {10}^{7}C/kg$

Mass of alpha particle is four times the mass of the proton and charge of alpha particle is twice the charge of the proton.

So, specific charge of an alpha particle is half that of specific charge of a proton.

Hence, option C is correct.