Waves

In the NCERT Physics book Physics Part 2 (Class 11, Chapter – “Waves”), you explore how energy travels through a medium in the form of waves. You learn about mechanical waves, including how disturbances move through solids, liquids, and gases.

You study different properties of waves such as wavelength, frequency, amplitude, and wave speed, and how these quantities describe wave behavior. The chapter also explains the principle of superposition, which helps understand phenomena like interference and standing waves.

You also explore sound waves and how they propagate through air and other media. The chapter introduces the Doppler effect, which explains how the frequency of sound changes when the source or observer is moving. Through this chapter, you develop an understanding of wave motion and its role in many physical and real-world phenomena.