The Photoelectric Effect: Qualitative Observational Experiment

Aim

Observe the behaviour of a charged electroscope when normal light and UV light is shone on it.

Prior Knowledge

  1. Electrostatics

Description of the Experiment

An electroscope is charge up and first normal light and then UV light is shone on the plate. Observe what happens in each case. Is there any different between whether the elecroscope is positively or negatively charged?

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