what is cathode rays explain the property
Answers
They travel in straight lines and cast sharp shadows.
They are deflected by electric and magnetic fields and have a negative charge. They are beams of tiny, negatively charged particles called electrons.
Properties of Cathode Rays
i. The cathode rays start from cathode and move towards the anode.
ii. They are invisible, but their behaviour can be observed with the help of fluorescent or phosphorescent materials.
iii. In the absence of electrical or magnetic field, these rays travel in straight lines.
iv. In the presence of electric or magnetic field, the cathode rays behave similar to that of negatively charged particles. From this it is clear that the cathode rays consist of negatively charged particles called electrons.
v. The characteristics of cathode rays (electrons) do not depend upon the material of electrodes and the nature of the gas present in the cathode ray tube.
vi. These rays possess kinetic energy and hence can do mechanical work.
vii. They can produce x-rays when incident on metals with high atomic mass.