Chapter 8 – Electromagnetic Waves
Chapter 8 – Electromagnetic Waves explains how changing electric and magnetic fields propagate through space as waves, based on the principles established by James Clerk Maxwell. These waves do not require a material medium and travel at the speed of light, linking electricity, magnetism, and optics into a unified theory. The chapter describes the characteristics of electromagnetic waves, including their transverse nature, wavelength, frequency, and energy. It also introduces the electromagnetic spectrum, covering radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, along with their practical applications in communication, medicine, and technology. And it is important for Class 12 board exams and competitive exams like NEET and JEE.
Electromagnetic waves NCERT
- Class 12 Physics Part-2