APPARATUS: <br />1. Photodiode with amplifier <br />2.Batteries to operate amplifier and provide reverse voltage <br />3.Digital voltmeter to read reverse voltage <br />4.Source of monochromatic light beams to irradiate photocathode <br />5.Metal <br />Procedure: <br />Arrange them as shown in video <br /> For more visit : danishhelp.blogspot.in
