Light of Wavelength 400 Nm Falls on a Metal Surface

Multiple Choice

Light of wavelength 400 nm falls on a metal surface having a work function 1.70 eV.What is the maximum kinetic energy of the photoelectrons emitted from the metal? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s = 4.141 × 10^-15 ev ∙ s,1 eV = 1.60 × 10^-19 J)

A) 4.52 eV
B) 3.11 eV
C) 1.41 eV
D) 2.82 eV
E) 1.70 eV