Integrated Coordinated Science for the 21st Century
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Answers
Stretching Exercises
- The red laser light passes through the acrylic block, which absorbs light of other colors.
- The laser beam will pass through the tubing both times it reaches the outside at the gelatin, total internal reflection occurs, so this is a model of a light pipe.
- When the light leaves the water, the light bends away from the normal (the vertical). If you find the ray from the water that enters your eye, extend this ray backward to find where you will see the coin.
- The coin disappears. Suggest that students draw diagrams to explain what happens.
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