MCQ
A body can be negatively charged by
- ✓Giving excess of electrons to it
- BRemoving some electrons from it
- CGiving some protons to it
- DRemoving some neutrons from it
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(Take $1$ curie $= 3.7 × 10^{10}$ disintegration per second and ${e^{ - \lambda t}} = 0.7927;$ where $\lambda$= disintegration constant)

