Photoelectric Effect Concept

Demonstrations in Photoelectric Effect

Projection electroscope with zinc plate clipped to the top knob and a quartz-encased mercury lamp glowing blue, mounted on a ring stand with finger clamp and aimed at the plate
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Photoelectric Effect

UV light from a mercury lamp discharges a negatively charged zinc plate but not a positively charged one, demonstrating the photoelectric effect. Students see that only photons above the threshold …
Desk lamp illuminating a solar cell panel connected by wires to a toy oil rig with beam pump mechanism on a wooden base
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Solar Oil Rig

Demonstrates photovoltaic energy conversion using a solar cell to power a toy oil rig from a lamp. Students observe the conversion chain from light to electrical to mechanical energy. The …