Refraction, Part 2

  • Due Dec 8, 2016 at 8:59am
  • Points 2
  • Questions 2
  • Available until Dec 8, 2016 at 8:59am
  • Time Limit None
  • Allowed Attempts Unlimited

Instructions

Watch the following video tutorial:
http://youtu.be/KjaTOivsArY

[PDF of Slides]

Summary:

• At or past a critical refraction angle all light is reflected at a surface (total internal reflection).
• Total internal reflection only occurs if incident light is on the side of higher refraction index (e.g., light in water reflects off the surface).
• The refraction angle is slightly different for different wavelengths (colors) of light, an effect known as dispersion.
• Rainbows are due to the reflection and dispersion of light in water droplets.
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