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
When cathode-rays strike a metal target of high melting point with a very high velocity, then which of the following are produced
In the phenomenon of electron discharge through gases at low pressure, the coloured glow in the tube appears as a result of
If gE and gM are the eccelerations due to gravity on the surface of the earth and the moon respectively
Positive rays consists of
Electron volt is a unit of
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
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..
In A discharge tube ionization of enclosed gas is
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