"To emit a free electron from a metal surface a minimum amount of energy must be supplied" Give three method to supply energy to a free electron

"To emit a free electron from a metal surface a minimum amount of energy must be supplied" It is called………………….

"To emit a free electron from a metal surface a minimum amount of energy must be supplied" For metal A (tungsten) - work function is 4.52 eV for metal B (thoriated tungsten) it is 2.6 ev, for metallic (oxide coated tungsten) it is 1 eV Which will you prefer as a good electron emitter and why?

To emit a free electron from a metal surface a minimum amount of energy must be supplied.When light of frequency 7.21 * 10^14 Hz is incident on a metal surface, the maximum speed of the ejected electrons is 6 x 10^5 m/s . Calculate the threshold frequency for the metal.

The de-Broglie wavelength of the electron when it is emitted from the metal surface will be: Provided that the stopping potential of the electrons emitted in a photoelectric experiment is V.