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Total Internal Reflection

Total Internal Reflection. Rays starting in a denser medium will refract away from normal in the less dense medium. Dense Source. At the critical angle the refraction is 90 ° . All the light is internally reflected. Critical Angle. Raindrop.

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Total Internal Reflection

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  1. Total Internal Reflection

  2. Rays starting in a denser medium will refract away from normal in the less dense medium. Dense Source

  3. At the critical angle the refraction is 90°. All the light is internally reflected. Critical Angle

  4. Raindrop • A raindrop exhibits both reflection and dispersion.

  5. Rainbow

  6. Double Rainbow • The secondary rainbow is fainter than the primary. • The secondary rainbow arises from light that makes two reflections from the interior surface before exiting the raindrop. • Higher-order rainbows are possible, but their intensity is low.

  7. Fiber Optics • Plastic or glass rods are used to “pipe” light from one place to another. • Medical use for diagnosis and correction of medical problems • Telecommunications • Decoration next

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