What is the frequency $(v,$ in hertz$)$ of the photons emitted by a HeNe laser with a wavelength $()$ of $632\mathrm{.}8nm?$

a$)4\mathrm{.}738{10}^{14}Hz$

b$)1\mathrm{.}897{10}^{11}Hz$

c$)4\mathrm{.}738{10}^{5}Hz$

d$)1\mathrm{.}897{10}^{14}Hz$

e$)1\mathrm{.}897{10}^{2}Hz$