A $"$He$-$Ne$"$ laser operates with a $594\mathrm{.}1$nm wavelength.

How many photons per second does a $8$mW laser provide?

Notes:

If needed: $1$eV$=1\mathrm{.}6$e$19$J and E$($eV$)=1240/$$($nm$)$

If entering a value in scientific notation, use the format numbere$$exp $($with no spaces$)$ to represent number$10$exp.

r$=$photons$/$sec

A second laser operates with a $692\mathrm{.}5$nm wavelength.

How much power is generated by a laser providing $13\mathrm{.}961693548387096$e$+15$ photons per second?

P$=$