Determine whether the following mirror arrangements lead to optical stability. (a) Two concave mirrors with radi of curvature 1.8 m. separated by a distance of 2 m. (h) One concave mirror s 11h a radius of curvature of 2 m and the other concave mirror with radius 3 in. separated by a distance of 2.3 m. (c) Two concave mirrors with a radius of curvature of 0.5 m separated by a distance of 0.5m.

Determine whether the following mirror arrangements lead to optical stability. (a) Two concave mirrors with radi of curvature 1.8 m. separated by a distance of 2 m. (h) One concave mirror s 11h a radius of curvature of 2 m and the other concave mirror with radius 3 in. separated by a distance of 2.3 m. (c) Two concave mirrors with a radius of curvature of 0.5 m separated by a distance of 0.5m.