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This demonstration shows refraction and reflection in a water cup. As white light enters the water, it is refracted which separates the colors. It is then reflected off the back of the cup. As this light exits the cup into the air, it is again refracted separating the colors further and creating a rainbow.
Setup:
Set up a white screen on the demo table and behind it.
Place the lamp in stand with power supply on the screen. Place the water cup in front of the lamp.
Turn on the lamp and adjust the cup so that a rainbow forms on the screen behind it.
Notes:
The rainbow is more easily visible with the lights off.
Be careful, the lamp gets warm after prolonged use.
Courses Used In:
Coming Soon
Discussion and Polling Questions:
Coming Soon
Equipment Needed:
Two White Screens
Short Stand
Right Angle Clamp
Burette Clamp
Lamp with Power Supply
Cup Filled with Water
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