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 sodium (Na) surface is illuminated with light of wavelength 300 nm . The work function for Na metal is 2.46eV . The kinetic enegry of the ejected photoelectrons is

The work function of sodium is 2.3 eV . The threshold wavelength of sodium will be

A sodium metal piece is illuminated with light of wavelength 0.3 mum . The work function of sodium is 2.46 eV. For this situation ,mark out the correct statement (s).

A sodium metal piece is illuminated with light of wavelength 0.3 mum . The work function of sodium is 2.46 eV. For this situation ,mark out the correct statement (s).

Light of waelength 4000Å is incident on a metal plate with work function 2eV. The max. K.E. of the photoelectrons is

If the threshold wavelength for sodium is 5420 Å , then the work function of sodium is

The work function of a metal is 1.5 eV, light of wavelength 6600 overset@A is made incident on it. The maximum k.e. of emitted photo - electron is:

Light of wavelength 500 nm is incident on a metal with work function 2.28 eV. The de Broglie wavelength of the emitted electron is :

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be