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Chery Chery
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Posts: 3587
7 years ago
The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal? (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙ s)
A) 231 nm
B) 14.0 nm
C) 62.4 nm
D) 344 nm
E) 654 nm
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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HotMathHotMath
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Posts: 629
7 years ago
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Chery Author
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7 years ago
I needed this so much, thanks
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