In the photoelectric effect, the work function (Φ) is theminimum energy a photon must have to remove an electron froma metal surface .. For a given metal, Φ depends on how and where the photon strikes the crystal. Copper adoptsthe face-centered cubic structure. If the photon strikes perpen-dicular to the unit cell’s face,Φ is 4.59 eV; if perpendicular to a plane tangent to an edge,Φ is 4.48 eV; and if perpendicular to aplane tangent to a corner,Φ is 4.94 eV (1 eV=1.602X10⁻¹⁹J).Find the wavelength (in nm) of the lowest energy photon thatcan remove an electron from copper, and state how it strikes th eunit cell.

In the photoelectric effect, the work function (Φ) is theminimum energy a photon must have to remove an electron froma metal surface .. For a given metal, Φ depends on how and where the photon strikes the crystal. Copper adoptsthe face-centered cubic structure. If the photon strikes perpen-dicular to the unit cell’s face,Φ is 4.59 eV; if perpendicular to a plane tangent to an edge,Φ is 4.48 eV; and if perpendicular to aplane tangent to a corner,Φ is 4.94 eV (1 eV=1.602X10⁻¹⁹J).Find the wavelength (in nm) of the lowest energy photon thatcan remove an electron from copper, and state how it strikes th eunit cell.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter8: Atomic Structure

Section: Chapter Questions

Problem 98AP: Derive an expression for the ratio of X-ray photon frequency for two elements with atomic numbers Z1...

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