Questions
Light from a hydrogen discharge tube is incident on the cathode of a photoelectric cell the work function of the cathode surface is 3.4 eV. In order to reduce the photo-current to zero the voltage of the anode relative to the cathode must be made
detailed solution
Correct option is B
Similar Questions
The maximum energy of photoelectrons emitted in a photoelectric cells is measured using lights of various frequencies v. The graph in shows how varies with v. The slope of the graph is equal to
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