A Surface Has a Work Function 1

question 90

Multiple Choice

A surface has a work function 1.70 eV and has light of wavelength 400 nm shone on it. What is the kinetic energy of the photoelectrons emitted?

• A)4.52 eV
• B)3.11 eV
• C)1.41 eV
• D)2.82 eV
• E)1.70 eV

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