write any four characteristics of electromagnetic waves
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Four characteristics of electromagnetic waves are :
1. electromagnetic waves are produced by accelerating charge.
2.Electromagnetic waves could not require any
material mediam .
3.electromagnetic waves are transverse in wave.
4.electromagnetic waves travel in free space.
1. electromagnetic waves are produced by accelerating charge.
2.Electromagnetic waves could not require any
material mediam .
3.electromagnetic waves are transverse in wave.
4.electromagnetic waves travel in free space.
Answered by
4
Characteristics of electromagnetic waves
(i) Electromagnetic waves are produced by accelerated charges.
(ii) They do not require any material medium for propagation.
(iii) In an electromagnetic wave, the electric (→E) and magnetic (→B) field vectors are at right angles to each other and to the direction of propagation. Hence electromagnetic waves are transverse in nature.
(iv) Variation of maxima and minima in both →E and →B occur simultaneously.
(v) They travel in vacuum or free space with a velocity 3 × 108 m s-1 given by the relation C = 1/√(μ0ε0)
(μ0 – permeability of free space and ε0 – permittivity of free space)
(vi) The energy in an electromagnetic wave is equally divided between electric and magnetic field vectors.
(i) Electromagnetic waves are produced by accelerated charges.
(ii) They do not require any material medium for propagation.
(iii) In an electromagnetic wave, the electric (→E) and magnetic (→B) field vectors are at right angles to each other and to the direction of propagation. Hence electromagnetic waves are transverse in nature.
(iv) Variation of maxima and minima in both →E and →B occur simultaneously.
(v) They travel in vacuum or free space with a velocity 3 × 108 m s-1 given by the relation C = 1/√(μ0ε0)
(μ0 – permeability of free space and ε0 – permittivity of free space)
(vi) The energy in an electromagnetic wave is equally divided between electric and magnetic field vectors.
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