Questions in Dual Nature of Radiation and Matter

Select	Question
	In Bainbridge mass spectrograph a potential difference of 1000 V is applied between two plates distant 1 cm apart and magnetic field in B = 1T. The velocity of undeflected positive ions in m/s from the velocity selector is
	When cathode rays (tube voltage ~ 10 kV) collide with the anode of high atomic weight then we get
	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
	In a discharge tube at 0.02 mm, there is a formation of
	Electric field and magnetic field in Thomson mass spectrograph are applied
	The current conduction in a discharged tube is due to
	In Milikan's oil drop experiment, a charged drop falls with terminal velocity V. If an electric field E is applied in vertically upward direction then it starts moving in upward direction with terminal velocity 2V. If magnitude of electric field is decreased to $\frac{E}{2}$, then terminal velocity will become
	An electron is accelerated through a p.d. of 45.5 volt. The velocity acquired by it is (in m/s)
	A cathode emits electrons per second, when heated. When 400V is applied to anode all the emitted electrons reach the anode. The charge on electron is $1.6 \times {10^{ - 19}}C$. The maximum anode current is
	Order of q/m ratio of proton, $\alpha $-particle and electron is