Inside the unit are a caesium antimony cathode, a D/C power supply
with a potentiometer to provide a variable retarding voltage to the
photoelectric circuit and a digital display showing the retarding
voltage. 6 Different coloured lenses are provided to vary the value of
‘f’. A 4mm to lead is included for connecting the picoammeter to the
apparatus.
The planck's constant apparatus functions as a ready-built circuit for the measurement of the photoelectric effect.
Ideally used in conjunction with the Picoammeter.
Photocell: caesium antimony cathode (spectral response range 185-650nm)
Power source: 9V PP3 battery Dimensions: 205 x 150 x 115mm (W x H x D)
DC Stopping potential controlled by 10-turn potentiometer DC voltmeter
with 0-19.99V LED display Filters: 6 narrow-band (FWHM bandwidth:
4-15nm), with wavelengths of 405nm, Female UHF socket for connection to
picoammeter
Physics School Lab Equipment Suppliers in India
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