For certain photosensitive material, a stopping potential of `3.0 V` is required for light of wavelength `300nm`, `2.0V` for `400nm` and `1.0V` for `600nm`. The work function of the material is `(nearly)

If stopping potentials corresponding to wavelengths 4000A and 4500A are 1.3 V and 0.9 V, respectively, then the work function of the metal is

If stopping potentials corresponding to wavelengths 4000A and 4500A are 1.3 V and 0.9 V, respectively, then the work function of the metal is

In a photoelectron experiment , the stopping potential for the photoelectrons is 2V for the incident light of wavlength 400 nm. If the incident light is changed to 300 nm , the cut off potential is

A light having wavelength 300 nm falls on a metal surface work function of metal is 2.54 eV. What is stopping potential ?

Metal surface emits photoelectrons when light of wavelength 400 nm is incident on it. Calculate the work function of the metal if stopping potential is 0.5 V.

In a photo-electric cell, a retarding potential of 0.5 V is required to block the movement of electrons from the cathode when monochromatic light of wavelength 400 nm is incident on its surface. Find the work function of the material of the cathode.

In a photoelectric experiment using a sodium surface, you find a stopping potential of 1.85 V for a wavelength of 300 nm and a stopping potential of 0.820 V for a wavelength of 400 nm. From these data find (a) a value for the Planck constant, (b) the work function Phi for sodium, and (c) the cutoff wavelength lambda_(0) for sodium.

The maximum velocities of the photoelectrons ejected are v and 2v for the incident light of wavelength 400 nm and 250 nm on a metal surface respectively. The work function of the metal in terms of Planck's constant h and velocity of light c is

Light of wavelength 250 nm falls on a photosensitive material with work function 3 eV. Find the stopping potential for this material.