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Science-Related Homework Help Physics Topic started by: Chery on Dec 6, 2016



Title: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can ...
Post by: Chery on Dec 6, 2016
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


Title: Re: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that ...
Post by: HotMath on Dec 6, 2016
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Title: Re: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can ...
Post by: Chery on Jan 13, 2017
I needed this so much, thanks