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Electromagnetic Waves — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Waves3 Marks
Question
Which waves are electromagnetic waves?Which factors are responsible for their production?
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Answer

It is a three-dimensional wave which is produced by oscillating electric circuit. Their electric and magnetic fields are mutually perpendicular. These waves do not require any material medium for their propagation.
Reasons for their production : (i) Mechanical energy of the charge vibrating in oscillating electric field gets converted into electromagnetic waves.
(ii) Due to oscillation of charge, kinetic energy of the charge gets converted into electromagnetic waves.

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