1. What happens when a negatively charged zinc plate
is exposed to ultraviolet light?
with the
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Answer:
Photoemission is a process during which electrons are ejected from a metal surface when exposed to electromagnetic radiation, (eg ultraviolet). ... However, if a clean, negatively charged zinc plate is exposed to an ultraviolet source it will discharge.
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Answer:
The negatively charged zinc plate illuminated by ultraviolet radiation loses charge, suggesting that the radiation is ejecting electrons from its surface. It only loses charge when it is negatively charged. This suggests that it is negative charges that are ejected by the ultraviolet radiation.
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