24 In the figure an air lens of radii of curvature 10 cm R R

Last updated: 6/11/2023

24 In the figure an air lens of radii of curvature 10 cm R R 10 cm is cut in a cylinder of glass 3 2 The focal length and the nature of the len is Air Glass 1 15 cm convex 2 15 cm concave 3 neither concave nor convex