The working function for a certain metal is 4.2ev. Will these metal give photoelectric emision for incident radiation of wave length 330 nm.

Two metals X and Y have work functions 2eV and 5eV respectively. Which metal will emit electrons, when it is irradiated with light of wavelength 400 nm and why?

The work function of a metallic surface is 2.5 eV. Ultraviolet light of wavelength 2000Å is allowed to be incident on the metallic surface. Calculate Stopping potential. (Given Planck's constant h = 6.63 xx 10^(-34) J-s , electronic charge e = 1.6 xx 10^(-19) C, electron mass m = 9.1 xx 10^( -31) kg

Light of wavelength 3500 Å is incident on two metal surface A and B . Will both the metal surface yield photoelectrons, if their work function are 4.2 eV and 1.9 eV respectively? What is the kinetic energy of the fastest electron?

The work function of a metal is 3.45 eV. Calculate what should be the maximum wave length of a photon that can eject photo - electron from the metal.

The work function of Al is 4.2 eV. Find the W.L . Of the incident light if the photo current is brought to zero by a stopping potential of 0.80 eV.