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Determination of Planck's Constant (h) Apparatus
Mounting plate with six colored light-emitting diodes with different emission wavelengths for determining Planck’s constant h by measuring the cut-off voltage as a function of the frequency of the emitted light. Light-emitting diodes with series resistors mounted on a base plate with a stem.
Wavelengths: 465 nm, 560 nm, 585 nm, 635 nm, 660 nm, 950 nm
Series resistor: 100 Ω
Max. voltage: 6 V
Dimensions: 115x115 mm² approx.
Weight: 120 g approx.