When cathode-rays strike a metal target of high melting point with a very high velocity, then which of the following are produced
Vidicon works on the principle of
Positive rays are very identical to
The charge on electron was discovered by
A charged oil drop of mass
A cathode emits
Positive rays consists of
Electron volt is a unit of
The electron of a hydrogen atom revolve round the proton in a circular
If gE and gM are the eccelerations due to gravity on the surface of the earth and the moon respectively
millikans oil-drop experiment established that
Which of the following law is used in the Millikans method for the determination of charge
One moving electron when comes closer to other stationary electron
In A discharge tube ionization of enclosed gas is
In the phenomenon of electron discharge through gases at low pressure, the coloured glow in the tube appears as a result of
a beam of cathode rays is subjected to crossed Electric (E) and Magnetic field (B)
The value +1/2 and -1/2 of spin quantum number show
O++, C+ , He++ and H+ ions are projected on the photographic plate with same velocity in a mass spectrograph. Which one will strik..
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