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A light shines on a metal surface but no electrons are observed to be leaving. What would we need to do experimentally to eject electrons from the surface?.
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A light shines on a metal surface but no electrons are observed to be leaving. What would we need to do experimentally to eject electrons from the surface?.

User Krzysiek Goj
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You need to increase the frequency of light. (Hope this helped I think)
User Umut Tabak
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