Question

When viewing a piece of art that is behind glass, one often is affected by the light that is reflected off the front of the glass (glare), which can make it difficult to see the art clearly. One solution is to coat the out surface of glass with a film to cancel part of the glare. a.) if the glass has a refraction index of 1.62 and you use TiO_2, which has an index of refraction of 2.62, as the coating, what is the minimum film thickness that will cancel light of wavelength 505 nm (near the center of the visible spectrum)._______ b.) If the coating is too thin to stand up to wear, what other thickness would also work? (Find only the three thinnest ones). 1____2 ______ 3 ______ c.) What would be the thinnest antireflective coating, instead of TiO_2, magnesium fluoride (MgF_2) is used, with index refraction 1.39? (Find only the thinnest coating)_____

Answer 1