INTRODUCTION

Electro-MagneticWave is a self-propagating wave of the electromagnetic field that carries momentum and radiant energy through medium/vacuum space. It encompasses a broad spectrum, classified by frequency (inversely proportional to wavelength), ranging from radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, to gamma rays. An EM wave travel at the speed of light in a vacuum and exhibit wave–particle duality, behaving both as waves and as discrete particles called photons. 

Each medium of propagation presents its characteristics named permittivity and permeability in the electro-magnetic theory.

• Permittivity represented by the symbol epsilon describes a material's ability to permit the electric field to pass through it. It is a measure of how easily electric charges can be separated within the material in response to an applied electric field. 

• Permeability denoted as mu characterizes a material's ability to allow magnetic fields to pass through it. It represents how readily magnetic flux can propagate within the material when subjected to a magnetic field. 

CLASSIFICATION