A Plano convex lens of refractive index 1.5 and radius of curvature 30cm is silvered at the curved surface. Now this lens has been used to form the image of an object.
Plano concave lens
A Plano-concave Lens — Collection of Solved Problems
CONVERGING LENSES. Lenses Lenses REFRACT light and are usually used to form IMAGES 2 types convexconcave bi-convex plano-concave plano-convex bi-concave. - ppt download