Question

explain mechanical waves and electromagnetic waves​

Answer 1

mechanical waves

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

electromagnetic waves​

electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.

Answer 2

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

The electromechanical waves are analogous to travelling electromagnetic waves on transmission lines. As for transmission lines, current and voltage are used to describe the travelling waves, and the reflection is characterized in term of reflection coefficients in the light of the characteristic impedance of the lines.

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