Nonglare glass. When viewing a piece of art that is behind glass,one often is af

Question

Nonglare glass. When viewing a piece of art that is behind glass,one
often is affected by the light that is reflected off the front ofthe glass (called glare),
which can make it difficult to see the art clearly. One solution isto coat the outer
surface of the glass with a film to cancel part of the glare. (a)If the glass has a
refractive index of 1.62 and you use TiO2, which has an index ofrefraction of 2.62, as
the coating, what is the minimum thickness that will cancel lightof wavelength 505
nm? (b) If this coating is too thin to stand up to wear, what threenext thinnest films
would also work?

Explanation / Answer

= TiO2 /nTiO2
2t = m m = 1 tmin= m/2=(505/2.62)/2 =96.4 nm
b) Any t equal to an integer multiplied by 96.4 nm will workas the coating thickness, m = 2, 3, 4

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.