Question

3. A uniform plane electromagnetic wave propagates in a lossless dielectric medium with μ μ0 and ε ε,60 . The phasor electric field is given by the Note that the wavenumber of the dielectric k ko, where ko-o/c ωνμοε0 . Find the (a) relative dielectric permittivity (dielectric constant) (b) direction of propagation n, which is a unit vector (e) angle between the direction that the electric field vector points and the direction of in.

Answer 1

ANSWER Siven A uifrm plane elecpremag nef'z w owe popaatss In a loslecs dlielectvic me dium . with 句iven ele chic fold 's_ 20 e svey wave fst ncidant en plana aad then refle ckedギ9am, the plane refle cfeal inci 2 оїうincidex8.aviga New チ m) KI-, γ·ㄧ-) @ lo e

as Can su tten Divide both ewatien s. favom Srel's louo

0n3o /ki) 2- 2. 2

n The pebleelecic feld peints 17 2 aine chen.ance ppapagaben( ports in χ-Ł dmechon " So the angee between electvic held and úipe chon of is