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← ScienceWhich outcome results when photon energy exceeds the work function of a metal surface during photoelectric emission?
A)Increased kinetic energy of emitted electrons✓
B)Decreased rate of electron emission
C)Absorption of electrons by metal
D)Increase in the metal's temperature
💡 Explanation
When photon energy surpasses the metal's work function, the excess energy is transferred into the kinetic energy of the emitted electrons due to energy conservation. Therefore, the electrons' kinetic energy increases, rather than a decrease in emission, electron absorption, or bulk metal heating which involve other mechanisms or conditions.
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