Waves Waves transfer energy from one point to another without transferring any matter. In this chapter you will learn: Types of Waves Properties of waves Reflection of waves Refraction of waves Sound waves Seismic waves Electromagnetic waves Radio waves Uses and dangers of EM waves Types of lenses Visible light Black body radiation Perfect black bodies and radiation Types of Waves These are two types of waves: transverse and longitudinal waves . In transverse waves , the vibrations are perpendicular to the direction of energy transfer. In longitudinal waves , the vibrations are parallel to the direction of energy transfer. Properties of waves The amplitude of a wave is the
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