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why does violet light eject electrons from a certain photosensitive surface, whereas red light has no effect on that surface?
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why does violet light eject electrons from a certain photosensitive surface, whereas red light has no effect on that surface?

User Czarinna
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1 Answer

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Blue light has a higher frequency and therefore a higher energy than red light and can therefore eject electrons from a metal that red light cannot.

User Detlef
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