A 344-nm thick film coats a glass surface. The indices of refraction of the film and the glass are 1.4 and 1.50, respectively. The surface of the film is illuminated from above at normal incidence with white light.

a) What are the two wavelengths of light in the 400 nm to 800 nm wavelength band that are most strongly reflected? Express your answer in nm.

b) What is the wavelength of light in the 400 nm to 800 nm wavelength band that is most weakly reflected? the wavelength of light in the 400 nm to 800 nm wavelength band that is most weakly reflected, in nm.