The photoelectric threshold wavelength for tungsten is `2400 Å`. Determine the energy of the electrons ejected from its surface when exposed to ultraviolet radiations of wavelength `1200 Å`.

The photo electric threshold wavelength of Tungsten is 2300 Å. The energy of the electrons ejected from the surface by ultraviolet light of wavelenghth 1800 Å is

The photoelectric threshold wavelength of a metal is 230 nm. Determine the maximum kinetic energy in joule and eV of the ejected electron from metal surface when it is exposed to a radiation of wavelength 180 nm. (Planck's constant h = 6.63 xx 10^-34 J-S, C = 3 xx 10^8 m//sec .)

The threshold wavelength for tungsten is 2730 Å . The work function of tungsten is

The threshold wavelength of tungsten is 2.76 xx 10^-5 cm .What will be the maximum kinetic energy of electrons ejected in each of the following cases: if ultraviolet radiation of wavelength lambda = 1.80 xx 10^-5 cm .