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Chapter 4: Learning Goal 1

Chapter 4: Learning Goal 1. Zach Saragin Michelina Restaino. Continuous Spectrum . Cont. Spect . are found from hot, dense objects, eg , sun, planets, moons Also called the Thermal Spectrum b/c Electromagnetic Radiation

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Chapter 4: Learning Goal 1

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  1. Chapter 4: Learning Goal 1 Zach Saragin MichelinaRestaino

  2. Continuous Spectrum • Cont. Spect. are found from hot, dense objects, eg, sun, planets, moons • Also called the Thermal Spectrum b/c Electromagnetic Radiation • It’s the basic ray of colors, roygbiv • It occurs when the white light is refracted with no other complications

  3. Emission Spectrum • When atoms and molecules travel through a hot gas and then emit extra light at certain wavelengths • Given off by nebulas, comets, and certain star types

  4. Absorption Spectra Absorptions lines occur when gases remove (absorb) wavelengths of light. These gases are naturally present in the outer layer of Earths atmosphere, scientists can also create these lines in a lab. the fraction of incidental radiation absorbed by the material over a range of frequencies. Radiation is more likely to be absorbed at frequencies that match the energy difference between two quantum mechanical states of the molecules. First Noticed by William Wollaston in 1802.

  5. Outer layer is cooler, absorbs Photons photons ThenYouSeeThis Photosphere

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