Physics

Physics

Problem

A photocell initially receives light of frequency ν\nu (ν>ν0\nu>\nu_0) and intensity II. At zero applied voltage, the photocurrent is I1I_1. Next, two changes are made simultaneously: (i) The frequency is increased to 1.2ν1.2\nu. (ii) The intensity is reduced to 0.5I0.5I. Which of the following is the correct prediction for the resulting saturation photocurrent (IsI_s) and stopping potential (V0V_0) compared with their initial values? a) IsI_s remains the same, V0V_0 increases b) IsI_s decreases, V0V_0 increases c) IsI_s increases, V0V_0 increases d) IsI_s decreases, V0V_0 remains the same

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