Write name of universal and fundamental particle of matter.
What is specific charge ? Write its standard value.
When electron beam passes through an electric field, they gain kinetic energy. If the same beam passes through magnetic field, then
Energy of electrons can be increased by allowing them
Write dimensional formula and electron volt of electron volt.
In a parabola spectrograph, the velocities of four positive ions $P,Q,R$ and $S$ are $v_1$, $v_2$, $v_3$ and $v_4$ respectively