Use of Concave and Convex lens#!#Prism#!#Revision

Concave lens and Convex lens

Concave lens and convex lens

State used of a convex lens.

State used of a concave lens.

Assertion:A convex lens and a concave lens are kept in contact. They will behave as a diverging lens if focal length of convex lens is more. Reason: Power of a concave lens is always less than the power of a convex lens, as power of concave lens is negative whereas power of convex lens is positive.

Lens (लेन्स)|Concave Lens And Convex Lens & its Uses,types (अवतल लेंस और उत्तल लेंस और उसके उपयोग,प्रकार) |Summary