An electron is ejected from a metal surface via the photoelectric effect. The metal's work function is 2.5 eV. If a photon with a frequency of 1.0 × 10¹ Hz strikes the metal, calculate the kinetic energy of the ejected electron.
Choose the correct option:
a) 0.57 eV
b) 1.00 eV
c) 1.64 eV
d) 2.50 eV