Name the lens involved in the following diagram:
Concavo – Convex
Convexo – Concave
Biconvex
Biconcave
Plano-convex
Bi-convex lens forms virtual upright & magnified image when the object is placed between F and Optic Centre.
Which lens is converging: (i) an equiconcave lens or an equiconvex lens? (ii) a concavo-convex lens or a convexo-concave lens?
Which of the following can make a parallel beam (a) concave mirror as well as concave lens (b) convex mirror as well as convex lens (c) concave mirror as well as convex lens (d) convex mirror as well as concave lens