When It Is Struck by 240-Nm Photons,a Material Having a Work

Multiple Choice

When it is struck by 240-nm photons,a material having a work function of 2.60 eV emits electrons.What is the maximum kinetic energy of the emitted electrons? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

A) 2.58 eV
B) 5.18 eV
C) 2.00 eV
D) 4.21 eV