Advertisements
Advertisements
प्रश्न
What are cathode rays? How are these rays formed?
Advertisements
उत्तर
Cathode rays are the beam of electrons which travel from the negatively charged end (i.e. cathode to anode) of a vacuum tube, across a voltage difference between the electrodes placed at each end.
Formation of cathode rays:
Generally gases are poor conductors of electricity. However, when a high voltage charge from an induction coil is applied to tubes filled with gases at very low pressure (0.01 mm of mercury), the gases become good conductors of electricity and begin to flow in the form of rays.
These rays are called cathode rays and they travel from the cathode towards the anode.
APPEARS IN
संबंधित प्रश्न
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
If an atom contains one electron and one proton, will it carry as a whole is neutral
Give the symbol and charge of each particle.
If electrons are getting added to en element Y; then
Is Y getting oxidized or reduced?
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
Name or state the following:
A bond formed by transfer of electron(s)
Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.
Explain in brief the experimental proof which led to the discovery of –
Electrons
_______ is a negatively charged particle.
The relative charge of an electron is – 1.
