What Is the Maximum Velocity of a Photoelectron Emitted from a Surface

question 69

Multiple Choice

What is the maximum velocity of a photoelectron emitted from a surface with work function 5.00 eV when illuminated by 200 nm ultraviolet light? (m_electron = 9.11 x 10^-31 kg,h = 6.63 x 10^-34 J*s,1 eV = 1.60 x 10^-19 J,and 1 nm = 10^-9 m)

• A)800 000 m/s
• B)653 000 m/s
• C)431 000 m/s
• D)212 000 m/s

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