In Milikan’s experiment, static electric charge on the oil drops has been obtained by shining X-rays





Q.39:-In Milikan’s experiment, static electric charge on the oil drops has been obtained by shining X-rays. If the static electric charge on the oil drop is –1.282×10-18 C, calculate the number of electrons present on it.

 

 

Answer:-
As in the above question,
Number of electrons present in oil drop = –1.282×10-18/1.602×10-19 = 8