Write name of universal and fundamental particle of matter.
In Thomson's experiment if the value of $q/m$ is the same for all positive ions striking the photographic plate, then the trace would be
While doing his experiment, Millikan one day observed the following charges on a single drop
$(i)$ $6.563 \times {10^{ - 19}}C$ $ (ii)$ $8.204 \times {10^{ - 19}}C$
$(iii)$ $11.50 \times {10^{ - 19}}C$ $ (iv)$ $13.13 \times {10^{ - 19}}C$
$(v)$ $16.48 \times {10^{ - 19}}C$ $ (vi)$ $18.09 \times {10^{ - 19}}C$
From this data the value of the elementary charge $(e)$ was found to be
From the following, what charges can be present on oil drops in Millikan's experiment
(Here e is the electronic charge)
When the speed of electrons increases, then the value of its specific charge
Which is not true with respect to the cathode rays