The work function of sodium is

PHYSICS · Subjective · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

The work function of sodium is 2.3 eV2.3\,\text{eV}. Calculate the threshold wavelength for photoelectric emission from sodium. (Take h=6.63×10−34 J sh=6.63\times10^{-34}\,\text{J s}, c=3.0×108 m s−1c=3.0\times10^{8}\,\text{m s}^{-1}, 1 eV=1.6×10−19 J1\,\text{eV}=1.6\times10^{-19}\,\text{J}.)

Related theory

Browse the problem library