Why are the photoelectric work functions different for differet metals?

Define Photoelectric work function .

Define the photoelectric work function of a metal..

What do you mean by photoelectric work function?

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

Photoelectric effect was first observed by Hertz. Select the correct statement related to the photoelectric effect: Work function is the same for all metals.

What is the photoelectric work function for a metal if the threshold wavelength for the metal is 3.315 xx 10^(-7) m ?

if the threshold wavelength for the given metal is 4 xx 10^(-7) m ,What is the photoelectric work function for a metal ?

if the threshold wavelength for the given metal is 8 xx 10^(-6) m ,then What is the photoelectric work function for a metal ?

Calculate the photoelectric work function of a metal whose threshold wavelength is 5200 Å.

Aluminium metal has a threshold frequency corresponding to wavelength 4770overset@ A . Calculate the photoelectric work function for aluminium and express it in eV.