Question 13
How much energy, in Joules, is contained in a single photon of green light with wavelength 505 nm? For reference, following are some useful constants: Planck’s constant $h=6.62607004\times10^{-34}\,\mathrm{m^2\,kg/s}$; speed of light $c=299\,792\,458\,\mathrm{m/s}$; Boltzmann’s constant $k=1.38064852\times10^{-23}\,\mathrm{m^2\,kg\,s^{-2}\,K^{-1}}$; acceleration due to gravity $g=9.81\,\mathrm{m/s^2}$.