To find the solution to the problem, we would be using Planck's equation which is E = hv Where: E = energy h = Planck's constant = 6.626 x 10-34 J·s ν = frequency Then, you’ll need a second equation which is c = λν Where: c = speed of light = 3 x 108 m/sec λ = wavelength ν = frequency Reorder the equation to solve for frequency:ν = c/λ Next, substitute frequency in the first equation with c/λ to get a formula you can use: E = hν E = hc/λ But we are looking for the wavelength, so rearrange it more, then our final equation would be: λ = hc / E λ = (6.625E-34)(3.0E8 m/s) / (1.06E-13) λ = 1.875E-12 m
