Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying 0.5 V when the radiation of 250 nm is used. The work function of the metal is :
As we learned
Photoelectric Effect -
m is the mass of the electron
u is the velocity associated with the ejected electron.
h is plank’s constant.
v is frequency of photon,
v0 is threshold frequency of metal.
ltopping potential = 0.5 eV