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 _________.
What is the nature of the charge on Cathode rays .
If an atom contains one electron and one proton, will it carry as a whole is neutral
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
If electrons are getting added to en element Y; then
Is Y getting oxidized or reduced?
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
What are the noble gases?
_______ is a negatively charged particle.
Which of the following statement is always correct?
An atom has a number of orbits and each orbit has protons.
