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Determination of Planck's Constant (h) Apparatus

Determination of Planck's Constant (h) Apparatus

Retail Price $355.00
Today's Online Price $301.75
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Product Code: 3B-U8482460
Store closed. No new orders.


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 Ohm
  • Max. voltage: 6 V
  • Dimensions: 115x115 mm approx.
  • Weight: 120 g approx.

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