If `lamda_o and lamda` be the threshold wavelength and wavelength of incident light , the velocity of photoelectron ejected from the metal surface is :

If lambda_(0) is the threshold wavelnegth of a metal and lambda is the wavelength of the incident radiation, the maximum velocity of the ejected electron from the metal would be

A monochromatic light of wavelength lamda is incident on an isolated metallic sphere of radius a. The threshold wavelength is lamda_(0) , which is larger than lamda . Find the number of photoelectrons emitted before the emission of photo electrons stops.

The graph between the energy of photoelectrons E and the wavelength of incident light (lamda ) is

The threshold wavelength of photo sensitive metal is 5000 A .Find the velocity of the photoelectrons emitted by it when wavelength of 4000A is incident on it.

The photoelectric threshold wavelength for silver is lamda_(0) . The energy of the electron ejected from the surface of silver by an incident wavelength lamda(lamdaltlamda_(0)) will be

The photoelectric threshold wavelength for silver is lamda_(0) . The energy of the electron ejected from the surface of silver by an incident wavelength lamda(lamdaltlamda_(0)) will be