Q. Compared to the mass of lightest nuclei, the mass of an electron is only (app.)
A) 1/80
B) 1/800
C) 1/1800
D) 1/2800
Explanation
(c)
The mass of electron $= \frac{1}{1837}$ (mass of lightest nuclei)
or approximately $\frac{1}{1800}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.