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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
A monochromatic light beam is incident on the surface of a metal having a work function of 2.50 eV.  If a 1.0-V stopping potential is required to make the electron current zero, what is the wavelength of light? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙ s, 1 eV = 1.60 × 10-19 J)
A) 355 nm
B) 423 nm
C) 497 nm
D) 744 nm
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College Physics

College Physics


Edition: 1st
Authors:
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lyalllyall
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7 years ago
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Chery Author
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#2
7 years ago
You're right again!

Appreciate it
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