3. Consider a red light (7Lr = 700 nm) and a blue light (7Lb = 400 nm) in an interference Young double slit experiment (Figure). a) Compute the angular separation Acp = (p9)r (p(3)b between the corresponding third maximum knowing that the screen and the source are in the far distance regime and that the separation between the slits is d = 0.1 mm. b) Express the frequency of the red light (fr) in Hz