Chapter 17 Reflection and Refraction

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Chapter 17Reflection and Refraction
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Ch 17.2

• Applications of Reflected and Refracted Light

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I. Applications of Reflected and Refracted Light

• A. Total internal reflection
• B. Effects of refraction
• C. Dispersion of Light

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A. Total internal reflection

• Critical angle

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• Calculating the critical angle
• ni sin Ti nr sin Tr
• Ti Tc
• sin Tc nr / ni
• Note you can only have total internal reflection
  when going from a more dense to a less dense
  medium. (ex. water to air)
• Applications of total internal reflection.

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B. Effects of Refraction

• Positions of objects in liquids
• Mirage effect
• Extended daylight

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C. Dispersion of Light

• The separation of light into its spectrum
• Other materials that disperse light
• Diamond
• Spectra of different light sources
• Formation of rainbows

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• Homework
• Chapter 17 review problems 50 - 58