(a) Explain why electrons are not emitted from a metal surface when it is illuminated…

PHYSICS · Subjective · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

(a) Explain why electrons are not emitted from a metal surface when it is illuminated by light whose frequency is lower than a certain minimum value. (b) What is this minimum frequency called?

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