MCQ
From the following, what charges can be present on oil drops in Millikan's experiment $($Here e is the electronic charge$)$
- AZero, equal to the magnitude of charge on $\alpha -$ particle
- ✓$2 e , 1.6 \times 10^{-18} C$,
- C$1.6 \times 10^{-19} C , 2.5 e$
- D$1.5 e , e$
