The photoelectric threshold wavelength for potassium (work function being `2 eV`) is

The photoelectric threshold wavelength for Potassium having work function of 2eV is.......... (Take h= 6.6 xx 10^(-34) J s. 1 eV = 1.6 xx 10^(-19) J , C = 3 xx 10^8 Ms^(-1) )

The photoelectric threshold frequency for potassium is 3 xx 10^(14) Hz. The work function for potassium is (h=6.625 xx 10^(-34)Js)

The threshold wavelength of a metal having work function 2 eV is 6000 Å . What will be the threshold wavelength for the metal having a work function of 6 eV ?

The threshold wavelength for a metal surface whose photoelectric work function is 3.313 eV is……………………

The threshold wavelength for a metal surface whose photoelectric work function is 3.313eV is

What is the threshold wavelength of a metal if the photoelectric work function of the metal is 5 eV?

Photoelectric effect takes place in element A. Its work function is 2.5 eV and threshold wavelength is lambda . An other element B is having work function of 5 eV . Then find out the wavelength that can produce photoelectric effect in B.