A sheet of silver is illuminated by monochromatic ultraviolet light of wavelength = `1810 Å`. What is the maximum energy of the emitted electron ? Threshold wavelength of silver is `2640 Å`.

In an experiment tungsten cathode which has a threshold wavelength 2300 Å is irradiated by ultraviolet light of wavelength 1800 Å . Calculate (a) maximum energy of emitted photoelectronos & (b) work function of the tungsten

What is the energy of photon of wavelength 24800 Å ?

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :

The threshold wavelength of tungsten is 2300 Å. If ultra voilet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be

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

Surface of sodium is illuminated by a light of 6000 Å wavelength. Work function of sodium is 2.6 eV. Then minimum K.E. of emitted electron is :

A slit of width d is illuminated by red light of wavelength 6500Å For what value of d will the first maximum fall atangle of diffractive of 30^(@)

A beam of monochromatic blue light of wavelength 4200 Å in air , travels in water of refractive index (4)/(3) . What is the its wavelength in water ?

What is the energy of photon whose wavelength is 6840 Å ?