Monochromatic light of frequency falls normally on a freshly polished metallic surface
PHYSICS · Subjective · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
Monochromatic light of frequency 9.0×1014Hz falls normally on a freshly polished metallic surface. The stopping potential measured for the emitted photoelectrons is 2.0V.
(i) Calculate the work function of the metal in joule.
(ii) Express the same work function in electron-volt.
(iii) Determine the threshold frequency and the corresponding threshold wavelength for this metal.