NCERT Solutions for Class 10 Science, Chapter 10 - Light - Reflection and Refraction

In this section, you’ll study about light and what is meant by reflection and refraction. It
is very important to have a clear understanding of various properties of light because it
is impossible to live without light. It is interesting to know what makes an object visible
and another invisible or partially visible. Both reflection and refraction of light are
based on the straight-line propagation. Reflection is the bouncing of light rays back to
the same medium when they fall on a plane and refraction is the bending of light rays
when they enter a medium with different density.

Exploring the study of light – reflection and refraction have a lot of advantages, as these
concepts have several real-life applications. The concept of light is widely used in the
manufacturing and functioning of rear-view mirrors of the car, meters like voltmeters,
microscope, telescope, parabolic mirrors in torches, headlamps, shaving mirrors, and
much more.

Let’s take a look at topics and sub-topics of Class 10 Science Chapter 10, Light – Reflection and Refraction

10.1 Reflection of Light
10.2 Spherical Mirrors
10.2.1 Image Formation by Spherical Mirrors
10.2.2 Representation of images Formed by Spherical Mirrors using Ray Diagrams
10.2.3 Sign convention for Reflection by Spherical Mirrors
10.2.4 Mirror Formula and Magnification
10.3 Refraction of Light
10.3.1 Refraction through a Rectangular Glass Slab
10.3.2 The Refractive Index
10.3.3 Refraction by Spherical Lenses
10.3.4 Image Formation by Lenses
10.3.5 Image Formation in Lenses Using Ray Diagrams
10.3.6 Sign Convention for Spherical Lenses
10.3.7 Lens Formula and Magnification
10.3.8 Power of a Lens

In Class 10 Science Chapter 10, you will learn – 

Section 10.1 – In this section, you’ll study the reflection of light, the angle of incidence,
the incident ray, the laws of reflection, properties of an image etc. You will also learn to
compare the characteristics of an image on two surfaces.

Section 10.2 – In this section, you’ll learn about spherical mirrors in detail – meaning,
definition, types and uses of -concave mirror, convex mirror; schematic representation
of spherical mirrors, centre of curvature of the spherical mirror, radius of curvature of
the mirror, the principal axis, the principal focus of the convex mirror, image formation by spherical mirrors using ray diagrams, some conventions related to reflection byspherical mirrors, mirror formula and magnification.

Section 10.3 – In this section, you’ll study the refraction of light; and understand the
the phenomenon of refraction of light through a glass slab, experiments showing the laws of refraction of light, what is refractive index, an absolute refractive index of some
materials, refraction and image formation by spherical lenses and more.

In this chapter, you are provided with several diagrams, activities and examples with
their solutions for clear understanding about Light – Reflection and Refraction. To
know more about NCERT Solutions for Class 10 Physics Chapter 10 you should
explore the exercises mentioned in this chapter. You can also download the Light –
Reflection and Refraction Class 10 Solutions PDF, solved by our science experts.