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Light and Society.

A question which has puzzled scientists for many years is, is light a particle or a wave?
Scientists disagreed with these ideas for a very long time. Scientists like Newton believed
that the only explanation was that light behaved as a particle. However Hooke and
Huygens believed…

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Before Einstein carried out this work, scientists already knew that UV light had this effect
on metals. Electrons that escape from the metal are called photoelectrons. As mentioned
before visible light has no effect, and so no photoelectrons are made when visible light is
shone on the metal. This is…


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