What We Will Cover in the Chapter

Last updated at June 19, 2026 by

This chapter explains where light comes from, how it travels in a straight line, how shadows form, how light reflects in mirrors, and how images form.

Understanding the Name of the Chapter

Light
The thing that lets us see, given out by sources like the Sun.
Shadows
Dark patches formed when an object blocks light.
and
Joining the two big ideas of this chapter.
Reflections
Light bouncing off shiny surfaces like mirrors.
What does the name of this chapter tell us?
  • Light is what lets us see things around us.
  • When light is blocked, shadows are formed.
  • When light bounces off a mirror, it reflects.
  • So the chapter is about light, shadows, and reflections.

Topics We Will Study in This Chapter

Topics We Will Study
Intro Introduction 11.1 Sources of Light 11.2 Does Light Travel in a Straight Line? 11.3 Light through Transparent, Translucent, and Opaque Materials 11.4 Shadow Formation 11.5 Reflection of Light 11.6 Images Formed in a Plane Mirror 11.7 Pinhole Camera
11.8 Making Some Useful Items
11.8.1 Periscope 11.8.2 Kaleidoscope
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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.

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