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Question
The electrons are emitted in the photoelectric effect from a metal surface.
Options
only if the frequency of radiation is above a certain threshold value.
only if the temperature of the surface is high.
at the that is independent of the nature of metal.
with a maximum velocity proportional to the frequency of incident radiation
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Solution
The electrons are emitted in the photoelectric effect from a metal surface only if the frequency of radiation is above a certain threshold value.
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