Photochromic lenses contain
A)only AgCl embedded in the glass.
B)only CuCl embedded in the glass.
C)both AgCl and CuCl embedded in the glass.
D)neither AgCl nor CuCl embedded in the glass.

Question

Quizplus · Accepted Answer

Photochromic lenses contain both AgCl and CuCl embedded in the glass. These compounds react with UV light to cause the lenses to darken, and then revert back to a clear state when the UV light is removed.

Photochromic Lenses Contain