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Planck’s Constant
Modern LEDs (light emitting diodes) cover the range from deep blue (440 nm) to infra-red (940 nm). By monitoring the voltage at which each LED just begins to emit light a graph of energy input as a function of light emitted frequency can be plotted and an approximate value of Planck’s constant deduced. Complete with viewing tube but without power supply.
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Modern LEDs (light emitting diodes) cover the range from deep blue (440 nm) to infra-red (940 nm). By monitoring the voltage at which each LED just begins to emit light a graph of energy input as a function of light emitted frequency can be plotted and an approximate value of Planck’s constant deduced. Complete with viewing tube but without power supply.
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Roman Arch
Demonstrates the typical concept behind the architecture of roman arch structures, which are famous for their strength in compressive loading. Comprises a pre assembled 3-part buttress and a set of 23 wooden blocks. Fully assembled arch can easily support the weight of a child.
SKU: PH10229 - Physics
Weight Set On Tray
Set of Mild steel and brass weights providing weighing range from 10 gm to 1990 gm. Contains six brass weights of two each of 100 gm, one each of 50 gm, one each of 20 gm and two each of 10 gm, three steel weights of one each of 1 kg, one each of 500 gm and one each of 200 gm. Housed in a molded tray.
SKU: PH10139
