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

question 32

Multiple Choice

What is the maximum velocity of a photoelectron emitted from a surface with work function 5.22 eV when illuminated by 200-nm ultraviolet light? (m_electron = 9.11 × 10−³¹ kg,h = 6.63 × 10−³⁴ J⋅s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

• A) 800,000 m/s
• B) 212,000 m/s
• C) 653,000 m/s
• D) 591,000 m/s

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