(15 pts) A film of MgF2 (MgF2 = 1.38) having thickness 1.00x10 cm is used to coat a camera lens (mens = 1.50). (a) What are the 3 longest wavelengths that are intensified in the reflected light? (b) Are any of these wavelengths in the visible spectrum? Hint: Reflected light is a result of constructive interference. TABLE 33.1 Approximate Correspondence Between Wavelengths of Visible Light and Color Wavelength Color Range (nm) Description 400-430 Violet 430-485 Blue 485-560 Green 560-590 Yellow 590-625 Orange 625-700 Red Note: The wavelength ranges here are approximate. Different people will describe colors differently