NSEC Practice Questions - National Standard Examination In Chemistry (NSEC) Exam

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When a metal surface is illuminated with light of wavelength 300 nm, photoelectric emission occurs. If the work function of the metal is 2.5 eV, what is the maximum kinetic energy of the emitted photoelectrons? (Take hc = 1240 eV-nm)

1.63 eV 4.13 eV 2.50 eV 1.13 eV

Correct Answer:

1.63 eV

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