TS EAMCET Medical 31 Jul 2022 Shift 1 Paper

Question : 114 of 160

Marks: +1, -0

In a photoelectric emission experiment, the photocurrent is brought to zero by a stopping potential of 0.50‌eV. If the work function of the metal is 2.0‌eV, then the wavelength of the incident light is
(Take hc =1240‌eV.nm)