Advanced LED Array (Planck's Constant) | Carolina.com

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Advanced LED Array (Planck's Constant)

Item # 755152 New Online Only
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With the Advanced LED Array (Planck's Constant), teachers can discuss diffraction and the relationship between wavelength and color in light. In addition, Planck's constant can be calculated while introducing several of the underlying principles of semiconductors. The array features 11 vertically stacked LED lights attached to a base with power switch, 2 power inputs, and LED common terminal input.

Price

$116.95

In stock and available to ship.

With the Advanced LED Array (Planck's Constant), teachers can discuss diffraction and the relationship between wavelength and color in light. In addition, Planck's constant can be calculated while introducing several of the underlying principles of semiconductors (e.g., p-n junctions, bandgaps). The activation voltage (Va) of each LED can be measured, which is proportional to the energy of the emitted photons and thus inversely proportional to each LED's wavelength. From these measurements, Planck's constant is determined.

Use this array to supplement investigations for AP® Physics 2, the Particle Model of Light. It also can be an excellent introduction to Planck's constant for chemistry students. The array features 11 vertically stacked LED lights attached to a base with power switch, 2 power inputs, and LED common terminal input. The included instructions provide the LED wavelengths, or use a spectroscope to determine. DC power supply is needed but not supplied. Dimensions: base, 4-13/16 x 7-3/4"; metal array, 12-3/4" H; base plus array, 14" H.

AP® is a trademark registered and/or owned by the College Board®, which was not involved in the production of, and does not endorse, this product.

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Item# 755152
Power Requirements 0- to 6-V continuous DC
Components Qty Included?
Advanced LED Array 1 Included
Banana Plugs, 4 mm 2 Needed, Not Included
Power Supply (0- to 6-V continuous DC) 1 Needed, Not Included
Digital Multimeter Needed, Not Included
Diffraction Grating Film (optional) Needed, Not Included
Spectroscope (optional) Needed, Not Included
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