Atoms-and-Molecules UPSC Questions

Statement: In cathode ray discharge tube, when sufficiently high voltage is applied across the electrodes, current starts to flow.
Question: The cathode rays start from _____ and move towards the _____

Television picture tubes are cathode ray tubes and television pictures result due to _____ on the television screen coated with certain fluorescent or phosphorescent materials

The cathode rays consisting of negatively charged particles called _____

The electrons are the basic constituent of all the ______

Identify the RIGHT statements from the following
a) Thomson argued that the amount of deviation of the particles from their path in the presence of electrical or magnetic field depends upon the following reasons.
b) The magnitude of the negative charge on the particle, greater the magnitude of the charge on the particle, greater is the interaction with the electric or magnetic field and thus greater is the deflection
c) The mass of the particle — lighter the particle, greater the deflection.
d) the strength of the electrical or magnetic field — the deflection of electrons from its original path increases with the increase in the voltage across the electrodes, or the strength of the magnetic field

What is the charge of electron? (in C)