Selina Concise Physics Class 10 ICSE Solutions Refraction through Lens Selina ICSE Solutions for Class 10 Physics Chapter 5 Refraction through Lens Exercise 5(A) 1.What is a lens? Solution 1. A lens is a transparent refracting medium bounded by two curved surfaces which are generally spherical. 2.Name the two kinds of lens? Draw diagrams to illustrate them. Solution 2. 3.State difference between a convex and a concave lens in their (a) appearence, and (b) action on the incident light. Solution 3. Convex lens: It converge the incident rays towards the principal axis. It has a real focus. Concave lens: It diverges the incident rays away from the principal axis. It has a virtual focus. 4.Which lens is converging: an equiconcave lens or an equiconvex lens? Solution 4. Equiconvex lens is converging. 5.Out of the two lenses, one concave and the other convex, state which one will show the divergent action on ...
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