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

Question 91

Multiple Choice

What is the maximum velocity of a photoelectron emitted from a surface with work function 3.5 eV when illuminated by 289 nm ultraviolet light? (melectron = 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) 3.75E+5 m/s
B) 5.31E+5 m/s
C) 7.28E+2 m/s
D) 8.62E+5 m/s
E) ​1.60E+6 m/s

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