Name: Sources of Electromagnetic Waves
Uploaded: 2019-07-19
Duration: 5 min 12 s
Description: Can you name some sources of electromagnetic waves by looking around you? You will learn about the different sources of electromagnetic waves

Question

What are electromagnetic waves? Write any four properties.

Accepted Answer

Electromagnetic waves are abbreviated as EM waves. Electromagnetic waves consist of oscillating electric and magnetic fields. These waves are produced when an electric field comes in contact with the magnetic field. Electromagnetic waves transfer energy through space.

Properties of electromagnetic waves are as follows: -

(i) They do not require any material medium for their propagation.

(ii) The oscillations of $\vec{E}$ and $\vec{B}$ are perpendicular to each other and are in the same phase.

(iii) They are transverse in nature.

(iv) They travel through vacuum with the same speed, $c = 3 \times 10^{8} m / s$

(v) Electromagnetic waves can show interference or diffraction.

(vi) Electromagnetic waves may be polarised.

What are electromagnetic waves? Write any four properties.

Important Questions on Electromagnetic Waves

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