# Answer to Question #43162 in Atomic and Nuclear Physics for Benjamin K

Question #43162

A potassium metal photoelectric surface has a work function Φ = 2.24 eV.

a) Find the maximum kinetic energy of the electrons emitted when the surface is illuminated with light having frequency 6.00 x 1015 Hz. (ANS: 22.6 eV or 3.62 x 10-18 J)

b) Find the stopping potential for these electrons. (ANS: 22.6 V)

a) Find the maximum kinetic energy of the electrons emitted when the surface is illuminated with light having frequency 6.00 x 1015 Hz. (ANS: 22.6 eV or 3.62 x 10-18 J)

b) Find the stopping potential for these electrons. (ANS: 22.6 V)

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