Chapter 27 part 4
A particular metal is illuminated by UV photons of wavelength 210nm, and electrons up to 1.25 eV are emitted from the surface. Whatis the maximum KE of photoelectrons emitted when the UV photonsare, instead, 175 nm in wavelength?
A. 1.18 eV
B. 2.44 eV
C. 5.90 eV
D. 7.09 eV