101light - Electromagnetic Radiation Glenn V. Lo Department...

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    Electromagnetic Radiation Glenn V. Lo Department of Physical Sciences Nicholls State University
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    Light Experiments dealing with light were  critical to the development of modern  atomic theory. Light is also known as “electromagnetic  radiation”
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    Electromagnetic wave Behavior of light (reflection, refraction,  etc.) are well-explained by thinking of  light as an electromagnetic wave. Wave = disturbance propagating  through space.  Light waves travel at  300,000 km/s, or 3x10 8  m/s. “Electromagnetic” means it affects  charged particles.
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    Describing EM wave Speed = 300,000 km/s, or 3x10 8  m/s = “c” Wavelength (represented by Greek letter lambda) =  distance traveled per cycle = “color” Frequency (represented by Greek letter nu) = number  of cycles passing through a point per second Amplitude = “E o ”, is related to the intensity of the  radiation; energy delivered per unit area E o
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This note was uploaded on 06/11/2009 for the course CHEM 105 taught by Professor Wessel during the Spring '08 term at Nicholls State.

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101light - Electromagnetic Radiation Glenn V. Lo Department...

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