Exam I review (chia chao)

Exam I review (chia chao) - Electromagnetic Radiation The...

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Electromagnetic Radiation The Characteristics of Electromagnetic Radiation 1. electromagnetic radiation is described in terms of waves 2. waves are represented by frequency and wavelength 3. how fast a wave travels is expressed in cycles per second 4. the shorter the wavelength, the greater the frequencies 5. short wavelengths (higher frequencies) are more energetic
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Wavelength • The wavelength of electromagnetic radiation has the symbol λ (Greek letter lambda). – Measured in units of distance such as m,cm, nm and Å. 1 Å = 1 x 10 -10 m = 1 x 10 -8 cm = 1 x 10 1 nm
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Frequency The frequency of electromagnetic radiation has the symbol υ (Greek letter nu). – Measured in units of 1/time = s -1 – Hertz = Hz = 1 s -1
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Electromagnetic Radiation • The relationship between wavelength and frequency for any wave is velocity = λυ. • For electromagnetic radiation the velocity is 3.00 x 10 8 m/s and has the symbol c. •Thus c = λυ for electromagnetic radiation . All electromagnetic waves travel at the speed of light.
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Radiation, Quanta, and Photons In 1900 Max Planck studied black body radiation and realized that to explain the energy spectrum he had
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This note was uploaded on 09/09/2009 for the course CH 302 taught by Professor Mccord during the Spring '09 term at University of Texas-Tyler.

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Exam I review (chia chao) - Electromagnetic Radiation The...

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