Reference: Lab Experiments Journal vol-10, No.4, Page-316

Photo electric effect - Planck's constant

Experiment(s):

Verification of Einstein’s photo electric equation

Determination of Planck’s constant, photonic work function

Specifications

1 . Planck’s constant kit

                    Consists of built-in power  supply: 0 - 5 V variable, regulated & short circuit protected
Voltmeter: 0-20 V, 3½ digit, LED display
Current meter: 0-200 nA, 3½  digit, LED display
Rated Input: 220 V/50 Hz  or 110 V/60 Hz
Power Consumption: <50 W
Cabinet: Acrylic body,
aluminium bottom
Connectors: 2 mm - 2 mm
moulded brass pin patch cords
                  

2 . Photo tube

                    Wavelength sensitive photo tube fitted with independent illumination
Rated Input: 220 V/50 Hz or 110 V/60 Hz
Power consumption: <20 W
                  

3 . Filters

                    Set of 5 calibrated filters of  known wavelength
                  

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