Question

Write mathematical expressions for the vector electric und magnetic field components of a plane electromagnetic wave of wavelength 800 nm travelling along a direction (3.2.1) from the origin and polarized in the xy-plane. What would be results for a dielectric medium with dielectric constant 3.2.​

Answer 1

Answer:

Electromagnetic (EM) waves are changing electric and magnetic fields, transporting energy and momentum through space. EM waves are solutions of Maxwell's equations, which are the fundamental equations of electrodynamics. EM waves require no medium, they can travel through empty space. Sinusoidal plane waves are one type of electromagnetic waves. Not all EM waves are sinusoidal plane waves, but all electromagnetic waves can be viewed as a linear superposition of sinusoidal plane waves traveling in arbitrary directions. A plane EM wave traveling in the x-direction is of the form

E(x,t) = Emaxcos(kx - ωt + φ), B(x,t) = Bmaxcos(kx - ωt + φ).

E is the electric field vector, and B is the magnetic field vector of the EM wave. For electromagnetic waves E and B are always perpendicular to each other and perpendicular to the direction of propagation. The direction of propagation is the direction of E x B.

If, for a wave traveling in the x-direction E = Ej, then B = Bk and j x k = i. Electromagnetic waves are transverse waves.

Hope u will like this answer plz mark me as brainliest