Lesson Content. Electromagnetic waves can show interference or diffraction. 1- they are used in radio and TV communication system. This is true for waves on guitar strings, for water waves, and for sound waves, where amplitude is proportional to pressure. (b) Write two characteristics of electro-magnetic waves. Uses of Radio waves . In other words, EM waves are composed of oscillating magnetic and electric fields. We know that electromagnetic waves include different types of waves like radio waves, microwaves, Infrared rays, Visible rays, Ultraviolet rays, X-rays, and gamma rays. They can travel through space. Electromagnetic Spectrum is the classification of these waves according to their frequency. Overview. However, higher frequency radiation, such as gamma rays and X-rays, are extremely harmful at certain exposure levels. Waves with a higher frequency have a shorter wavelength. Waves with a higher frequency have a longer wavelength. They all move at the same speed. Electromagnetic waves may be polarized. Characteristics of Electromagnetic Waves. They are hence known as ‘electromagnetic’ waves. Wavelength (λ) is the distance between successive crests of a wave, especially points in an electromagnetic wave or sound wave. Electromagnetic waves and their characteristics is explained briefly in the points mentioned below. It can be simply defined as the distance of … Wavelength. 3- E.M wave are transverse in nature. 2- E.M waves do not require any material medium for their propagation. Description: Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. Electromagnetic waves travel with a constant velocity of 3 x 108 ms-1 in vacuum. Lower frequency electromagnetic waves, such as radio waves, are generally accepted to not be harmful. Electromagnetic waves are transverse waves. The electromagnetic spectrum describes a wide range of different electromagnetic waves.Also called EM waves, these are a special type of wave that can travel without a medium. 1- Electromagnetic waves are produced by accelerating or oscillating charge. Depict an electromagnetic wave propagating in Z-direction with its magnetic field oscillating along X-direction. Electromagnetic waves are not deflected by electric or magnetic field. Which are characteristics of electromagnetic waves? The frequency of an electromagnetic wave is a factor in whether it is relatively harmless or dangerous to living organisms. */ Light waves across the electromagnetic spectrum behave in similar ways. Check all that apply. They travel only through matter. Inquire: Electromagnetic Waves. When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light. 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