Electromagnetic waves - WAVES Tashin Fatima Khan BsMC 2k10...

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WAVES Tashin Fatima Khan BsMC 2k10 369
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A. Baseline E. Positive amplitude B. Peak F. Negative amplitude C. Peak to peak wavelength G. Trough D. Trough to trough wavelength Wave Basics
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Types of Waves Mechanical Waves Sound Earthquake Springs Electromagnetic Light Radio X-ray
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Electromagnetic Radiation Examples: Radio, TV, Microwave, X-Rays, Gamma Rays, Light, Ultraviolet, Infrared Do NOT need a medium Can travel through space How astronomers observe the universe
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How Fast? EMR is the fastest. Speed (“ c ”) is 3×10 8 m/s All EMR travels at the same speed Each type of EMR has a different wavelength and frequency
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How do you make EMR? J ust like any other wave, something has to move or vibrate Only now, it takes an electric charge (like an electron) that vibrates or moves
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EMR can act like a wave – it reflects, refracts, diffracts, etc. EMR can act like a particle (Photons)
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This note was uploaded on 01/17/2012 for the course MASS COMMU 107 taught by Professor Masror during the Spring '11 term at College of E&ME, NUST.

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Electromagnetic waves - WAVES Tashin Fatima Khan BsMC 2k10...

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