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
A
Physics & Space Science
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A. 153 ? B. 453 ? C. 353 ? D. 253 ? E. 553 ?
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What will be an ideal response?
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Indicate whether the statement is true or false
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