Light and Illumination

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Electromagnetic WavesElectric EMagnetic BBEc3 x 10 8 m/sWave Properties:1. Waves travel at thespeed of light c.2. Perpendicular electric<strong>and</strong> magnetic fields.3. Require no mediumfor propagation.For a complete review of of the electromagneticproperties, you should study module 32C.
The Wavelengths of <strong>Light</strong>The electromagnetic spectrum spreads over atremendous range of of frequencies or or wavelengths.The wavelength is is related to to the frequency f: f:c = fc = 3 x 10 8 m/sThose EM waves that are visible (light) have wave-lengths that range from 0.00004 to 0.00007 cm.Red, 0.00007 cmViolet, 0.00004 cm
Page 1 and 2: Chapter 33 - Light andIlluminationA
Page 3: A Beginning DefinitionAll objects a
Page 7 and 8: Example 1. Light from a Helium-Neon
Page 9 and 10: The Nature of LightPhysicists have
Page 11 and 12: Light Rays and ShadowsA geometric a
Page 13 and 14: Shadows of Extended ObjectsExtended
Page 15 and 16: Luminous FluxLuminous flux is the p
Page 17 and 18: Example 3. What solid angle is subt
Page 19 and 20: The Lumen in Power UnitsRecalling t
Page 21 and 22: Total flux for Isotropic SourceAn i
Page 23 and 24: Illumination of a SurfaceThe illumi
Page 25 and 26: Example 5. A 400-cdlight is located
Page 27 and 28: SummaryLight may be defined as elec
Page 29 and 30: Summary (Continued)RARTheSteradian
Page 31: CONCLUSION: Chapter 33Light and Ill

Light and Illumination

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