Question

General properties of cathode rays

Answer 1

properties of cathode rays

• cathode rays travel in straight line it can explain because they can form Shadow of an object
• it can rotate wheel which is placed in their path which means they give mechanical effect
• cathode rays deflect towards positive electrode on North Pole present in electric field on magnetic field
• cathode rays are made up of negatively charged particles
• . they can affect photographic film
• they can ionise gaseous particle filled in discharge tube .

Answer 2

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.