what is the energy in electron- volts (eV) of a photon of green light that has a wavelength of 520nm? (1.0 m = 1.0 x 10^-9m)

a. 3.8 x 10^-19eV

b. 3.4 x 10^-40 eV

c. 2.4eV

d. 2.2 x 10^-21 eV