In a cathode ray tube state :
How is it possible to increase the rate of emission of electrons.

In a cathode ray tube state : the purpose of the fluorescent screen.

In a cathode ray tube state : the purpose of covering cathode by thorium and carbon.

Why is a cathode ray tube evacuated to a low pressure ?

State two factors upon which the rate of emission of thermions depends.

How is the rate of reaction increased in the Haber process?

Assertion : The characteristics of cathode rays do not depend upon the material of electrodes and the nature of the gas present in the cathode ray tube. Reason : Cathode rays consist of negatively charged particles, called electrons.

How is it possible to increase the M. A. of the above lever without increasing its length ?

How do enzymes increase a reaction rate?

The emission spectra is observed by the consequence of transition of electrons from higher energy state to ground state of He^(+) ion. Six different photons are observed during the emission spectra, then what will be the minimum wavelength during the transition?

X-ray from a Coolidge tube is incident on a thin aluminum foil. The intensity of the X-ray transmitted by the foil is found to be I_0 . The heating current is increased so as to increase the temperature of the filament. The intensity of the X-ray transmitted by the foil will be