The threshold wavelength for a metal is 5000 Å . The maximum K.E. of the photoelectrons emitted when ultraviolet ligh of wavelength 2500 Å falls on it is

The wavelength corresponding to the threshold frequency for a certain metal is 5000overset@ A. Calculate the Max. K.E. of the photoelectron emitted when ultraviolet light of wavelength 2500overset@A falls on it.

Photoelectric threshold wavelength for a metal is 3800 Å . Find the maximum kinetic energy of emitted photoelectron, when ultraviolet radiation of wave length 2000Å is incident on the metal surface. Planck's constant, h = 6.62 xx 10^(-34) J.s

The threshold wavelength for a certain metal is 2000 Å. The work function of the 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 work function of a metal is 3 eV . The maximum kinetic energy of the emitted electrons when light of wavelength 3000 Å falls on it is