A Photon of Frequency $6.40 \times 1014 \mathrm{~Hz}$ Has What Energy?
A)

A photon of frequency $6.40 \times 1014 \mathrm{~Hz}$ has what energy?

A) $2.65 \mathrm{eV}$
B) $3.17 \mathrm{eV}$
C) $1.93 \mathrm{eV}$
D) $1.26 \mathrm{eV}$
E) $2.11 \mathrm{eV}$