The colour of the positive column in a gas discharge tube depends on
The specific charge of an electron is
The electron of a hydrogen atom revolve round the proton in a circular
A charged oil drop of mass
Positive rays are very identical to
Vidicon works on the principle of
An oil drop carrying a charge q has a mass m kg
A cathode emits
The charge on electron was discovered by
If gE and gM are the eccelerations due to gravity on the surface of the earth and the moon respectively
Positive rays consists of
In the phenomenon of electron discharge through gases at low pressure, the coloured glow in the tube appears as a result of
When cathode-rays strike a metal target of high melting point with a very high velocity, then which of the following are produced
Which of the following law is used in the Millikans method for the determination of charge
Electron volt is a unit of
millikans oil-drop experiment established that
a beam of cathode rays is subjected to crossed Electric (E) and Magnetic field (B)
One moving electron when comes closer to other stationary electron
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..
In A discharge tube ionization of enclosed gas is
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