1. A nonreflective coating (n = 1.24) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of yellow-green light (wavelength in vacuum = 564 nm), determine the minimum nonzero thickness that the coating can have. 2. wavelength of the light in the coating = wavelngth of light / n of coating desructive interference: 2t = (1,2...) wavelngth coating t=thickness 3. OK the wavelngth of the light through the coating is: 564/1.24 = 454.84 I figured maybe that was all i needed and attempted to find t. 2t=1(454.84) t= 227.42 this was not correct, so I next proceded to find the wavelength once through the film to the glass: 454.84/1.52 = 299.24 nm The destructive interference for this is: 2t = (1) 299.24 t= 149.62 nm This too was incorrect. I even tried plugging in the original wavelength of 564 nm with the n of glass; 1.52, then solving for t. This gave me: 564/1.52 = 371.05 2t= (1) 371.05 t= 185.53 None of these were correct. Any thoughts on where am I going wrong?