Saved Bookmarks
| 1. |
A biconvex lens made of material with refractive index n_(2). The radii of curvatures of its left surface and right surface are R_(1) and R_(2). The media on its left and right have refreactive indices n_(1) and n_(3) respectively. The first and second focal lengths of the lens are respectively f_(1) and f_(2). Assume that R_(1) = R_(2), n_(1) ne n_(3). The ratio, f_(1)//f_(2), of the two focal lengths is equal to |
|
Answer» `1` |
|