Waves and Oscillations

This chapter discusses the concept of sound and its characteristics. It discusses the frequency of sound with relation to musical instruments. Topics such as audible and inaudible sounds and noise and noise pollution are also discussed here.

In this chapter, we will learn the phenomena of reflection and refraction of light. It briefs on the working principle of a mirror, lens and prism, along with related formulae. It also describes the dispersion of light and some optical instruments.