Electrons Are Emitted from a Surface When Light of Wavelength

question 95

Multiple Choice

Electrons are emitted from a surface when light of wavelength 500 nm is shone on the surface but electrons are not emitted for longer wavelengths of light. The work function of the surface is

• A)5.0 eV.
• B)0.60 eV.
• C)2.5 eV.
• D)4.0 eV.
• E)0.40 eV.

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