The voltage across the electrodes of a cathode ray gun is 500 V. calculate
(i) the energy gained by the electrons,
(ii) the speed of the electrons, and
(iii) the momentum of the electrons.

The voltage across the electrodes of a cathode ray tube is 1000 V . Calculate the speed of the electron. Given mass of an electron =.1xx10^(-31)kg and charge on electron =1.6xx10^(16)C .

A photon of wavelenth 3000 A strikes a metal surface, the work function of the metal being 2.20eV . Calculate (i) the energy of the photon in eV(ii) the kinetic energy of the emitted photo electron and (iii) the velocity of the photo electron.

A photon of wavelenth 3000 A strikes a metal surface, the work function of the metal being 2.20eV . Calculate (i) the energy of the photon in eV(ii) the kinetic energy of the emitted photo electron and (iii) the velocity of the photo electron.

A cathode ray tube is operated at 2,500 V. What is the speed of electrons emitted?

In an electron gun, the electrons are accelerated by the potential V . If the e is the charge and m is the mass of the electron, then the maximum velocity of these electrons will be

In an electron gun, the electrons are accelerated by the potential V . If the e is the charge and m is the mass of the electron, then the maximum velocity of these electrons will be

The potential difference across an X ray tube is 12.4 kV and the current through the filament is 2 mA. Calculate : (i) The number of electrons striking per second on the anode. (ii) The speed with which the electron strikes the target. (iii) The shortest wavelength of X-ray emitted.

An electron is accelerated under a potential difference of 200 V . Energy gained by it in electron volt is :

An electron and a photon each have a wavelength of 1.50 nm. Find (i) their momenta, (ii) the energy of the photon and (iii) kinetic energy of the electron.