Multiple Choice
Blue light (λ = 460 nm) is incident on a piece of potassium (W = 2.45 eV) .What is the maximum kinetic energy of the ejected photoelectrons? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)
A) 1.0 eV
B) 0.25 eV
C) 0.50 eV
D) 4.9 eV
Correct Answer:
Verified
Correct Answer:
Verified
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