If the answer is visible light, what is its color c) which of these lasers produce photons of light with energy sufficient to break a chemical bond of energy 6 10 19 j? exercise5 the carbon dioxide laser is one of the most powerful developed. the energy difference between the two laser levels is 0.117 ev. determine a) the frequency and the wavelength of the radiation emitted by this laser b) in what portion of the electromagnetic spectrum is this radiation? exercise 6 a laser emits an optical power of i w at 500 nm in a 1 mm diameter collimated beam. how many photons are contained in i m of the beam?