Sound

This topic introduces the movement of air with disturbing patterns. It also explains different kinds of waves and the concept of restoring force proportionally. The constant of electromagnetic waves in a vacuum is also discussed here in detail.

In this topic, we will learn about the properties and propagation of sound wave. The basic properties of sound are discussed in this topic with the help of a diagram.

In this topic, we will learn about echo, the sound wave that is heard after reflection from a rigid surface along with and the factors responsible for it. Here we will learn that echo creates a continuous sound wave even after the source of sound has stopped working.

In this topic, we will be able to know the difference between free, damped and forced vibrations with their definition. This topic also covers condition for producing different vibrations and the concept of resonance.

This topic explains the resonance in series RLC circuit. The quantity that represents the measure of sharpness of resonance is also explained here.

In this topic, we will learn some significant concepts of oscillations of a stretched string on different conditions. The topic also shows how string produces different sound on different conditions with illustrations.

The chapter enhances our knowledge related to the properties of sound. It also explains how sound can be classified into the reflection of sound, echo, free or natural vibrations, damped and forced vibrations, and resonance.