CBSE Class 12 Physics Chapter-8 Notes: Vibration and Waves

BY Team Aakash Byju's

Chapter 8 in CBSE Class 12 Physics deals with electromagnetic waves. Let us see what are some important notes :

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Start the chapter by studying the displacement of current and its mathematical expression.

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Study Maxwell’s equations: Gauss law of electrostatics, Gauss law of magnetism, Faraday’s law of electromagnetic induction, and Modified form of Ampere’s circuital law.

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Electromagnetic Waves: Definition, sources that produce electromagnetic waves are important.

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Study what are Oscillation of Electric and Magnetic Fields and their mathematical equations.

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Don’t forget to study what is free space permittivity and permeability and the relationship between them.

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Also, study these - speed of light or of an electromagnetic wave in a material medium and energy per unit volume.

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Don’t miss revising the topics electromagnetic spectrum and different regions of the electromagnetic spectrum.

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Lastly, learn about radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays and gamma rays.

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Revise these points during exams. Keep up the hard work and share these tips with your friends.

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