Q. Which one of the following has unit positive charge and 1 u mass?

A) Electron
B) Neutron
C) Proton
D) None of these
Explanation

(c)
The proton has unit positive charge
$\left( + 1.602 \times 10^{- 19}C \right)$ and its mass is $1.007\ u\ \left( 1.677 \times 10^{- 27}kg \right).$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.