A small metal plate of work function `phi` is kept at a distance r from a singly ionised, fixed ion. A monochromatic light beam is incident on the metal plate and photoelectrons are emitted. Find maximum wavelength of the light beam so that some of that electrons may go round the ion along a circle.

A small metal plate (work function W) is kept at a distance d from a singly ionized, fixed ion. A monochromatic light beam is incident on the metal plate and photoelectrons re emitted. Find the maximum wavelength of the light beam so that some of the photoelectrons may go round the ion along a circle.

Light of wavelength 4700Å is incident on a metal plate whose work function is 2 eV. Then maximum kinetic energy of the emitted photoelectron would be

A metal plate of work function phi is illuminated by a monochromatic light beam of wavelength lamda A singly ionised ion is fixed at a distance r from the metal plate such that electrons emitted from the metal plate often revolve around it. Calculate the maximum possible value of lamda .

Ligth of wavelength 4000 Å is incident on a metal plate whose work function is 2 eV . What is maximum kinetic enegy of emitted photoelectron ?

No photoelectrons are emitted from a metal if the wavelength of light exceeds 6000 Å .The work function of the metal is approximately equal to:

When light of wavelength lesser than 6000 Å is incident on a metal, electrons are emitted. The approximate work - function of the metal is :

Work function of a metal is 4.0 eV. Find the maximum value of wavelength of a radiation that can emit photoelectrons from the metal.