Friday

The Light Waterfall

video

Watch this Video and answer the following questions in your own comment.

  1. Is the path of the laser light a curve? If not, how does it follow the path of the water?
  2. What do you think happens to the laser beam when all the water has flowed out of the tank?
  3. What is total internal reflection? Can you think of some examples where total internal reflection is useful?

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