Describe the two different notations used to specify

Solution : The above figure illustrates the Millikan’s oil-drop experiment, which was used to measure the charge of the el ectron. Small drops of oil were allowed to fall between electrically charged plates. The drops picked up extra electrons as a result of irradiation(process by which an object is exposed to radiation) by X-rays and they became negatively charged. M illikan measured the varying voltage between the plates that affected the rate of fall. From these data he calculated the negative charge on the drops. Because the charge on any drop was always some integral multiple of 1.602×10 C, Millikan -19 deduced this value to be the charge of a single electron. (a) What is the significance of the fact that the droplets carried different charges The fact that the d roplets carried different charges signifies that the d rops are of different sizes. This is explained in the data corresponding to the student's experiment which is as follows : From the table above , we see that different charges are carried out by different droplets. This is possible only when there is a difference in the size of the