Part A Exposure to a sufficient quantity of ultraviolet will redden the skin, producing erythema - a sunburn. The amount of exposure necessary to produce this reddening depends on the wavelength. For a 1.0 cm² patch of skin, 3.7 m.J of ultraviolet light at a wavelength of 254 nm will produce reddening; at 300 nm wavelength, 13 mJ are required. What is the photon energy corresponding to each of these wavelengths? Express your answers using three significant figures separated by a comma. ? Ο ΑΣΦ E254, E300 = Submit Request Answer Part B J How many total photons does each of these exposures correspond to? Express your answers using two significant figures separated by a comma. VAΣ ΜΕ ΑΣΦ N254, N300 Submit Request Answer ? photons