Q. Millikan’s oil-drop experiment established that
A) Electric charge depends on velocity
B) Specific charge of electron is $1.76 \times 10^{11}\ {Ckg}^{- 1}$
C) Electron has wave nature
D) Electric charge is quantized
Explanation
(d) Millikan performed the pioneering oil-drop experiment for the precise measurement of the charge on the electron. He found that the charge on an oil-droplet was always an integral multiple of an elementary charge $1.602 \times 10^{- 19}$ C. This proved that charge is quantized.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.