NCERT Solutions for Curiosity Chapter 10 Light: Mirrors and Lenses

About this chapter

A spherical mirror is a mirror whose reflecting surface is shaped like a part of a hollow sphere. If it curves inwards it is a concave mirror ; if it curves outwards it is a convex mirror . A concave mirror gives an image that is enlarged, diminished or the same size, and erect or inverted, depending on how far the object is from the mirror. A convex mirror always gives an erect, diminished image. Two laws of reflection: (i) the angle of incidence equals the angle of reflection, and (ii) the incident ray, the normal at the point of incidence, and the reflected ray all lie in the same plane. Both angles are measured from the normal . The laws hold for every mirror — plane, concave and convex. Because a spherical surface is curved, the normal points a different way at each point, so a parall

• Chapter opener
• .1 What Are Spherical Mirrors?
• .2 Characteristics of Images Formed by Spherical Mirrors
• .3 What Are the Laws of Reflection?
• .4 What Is a Lens?
• End-of-chapter questions
• Extension tasks