Class 10 FRANK Solutions Physics Chapter 2.2 - Refraction Through A Lens
Strengthen your Physics preparation with Frank Solutions for ICSE Class 10 Physics Chapter 2.2 Refraction through a Lens. Get clear answers on the differences between a concave lens and a convex lens. Learn to draw a ray diagram, the divergent action of a concave lens and the convergent action of a convex lens. Also, use our expert solutions to understand the focal plane of a lens, the principal axis of a lens, the virtual image and other concepts.
In addition, use TopperLearning’s other ICSE Class 10 Physics online study resources to revise the important topics of refraction through a lens. Watch video lessons and revision notes to get clarity on Physics concepts. For exam preparation, explore our Physics online mock tests and practice question papers.
Refraction Through A Lens Exercise 101
(i) First focal length: The distance from the optical centre of the lens to its first focal point is called the first focal length (f1) of the lens.
(ii) Second focal length: The distance from the optical centre of the lens to its second focal point is called the second focal length (f2) of the lens.
(i) First focal plane: It is the plane passing through the first focal point and normal to the principal axis of the lens.
(ii) Second focal plane: It is the plane passing through the second focal point and normal to the principal axis of the lens.
Refraction Through A Lens Exercise 102
(ii) A ray of light passing through the optical centre of the lens passes undeviated.