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Experimental Instruments » LEDI-1 Experimental Unit of Planck's Constant
Introduction
This is an instructional instrument that demonstrates photoelectric effect and quantifies current-voltage characteristics of photocathode upon illumination by monochromatic light at different frequencies. Establish cut-off voltage, validate the Einstein Equation, and determine the Planck.s Constant.
Complete System Set
- 75W Tungsten halogen lamp and power supply
- Monochromator
- Photoelectric cell and micro-current measuring amplifier
- Objective lens
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