ASTRON 1F03 Chapter Notes - Chapter 2: Electromagnetic Spectrum, Electric Field
7 Jun 2019
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Document Summary
In the 19th century, people didn"t know what radiation was: now we know that there are two aspects of radiation, light, particles. *sound is not a form of electromagnetic radiation: sound comes from pressure waves; all others are types of electromagnetic radiation of different wavelengths. Light: electromagnetic radiation: there are many kinds of electromagnetic radiation-it is all light. Infrared: radio waves, visible light, ultraviolet light, x-rays, gamma rays, all of these show up on the electromagnetic spectrum, and all types of light have different wavelengths and frequencies. What is light: how do chargesknow to be attracted or repelled, electric field.
