Upon Being Struck by 240-Nm Photons,a Metal Ejects Electrons with a Maximum

question 20

Multiple Choice

Upon being struck by 240-nm photons,a metal ejects electrons with a maximum kinetic energy of What is the work function of this metal? (h = 6.626 × 10^-34 J • s, ,1 eV = 1.60 × 10^-19 J)

• A) 3.73 eV
• B) 3.13 eV
• C) 4.33 eV
• D) 4.92 eV

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