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Using Total Internal Reflection of Light to Make a Periscope.
Two right angle prisms can be used to make a periscope.
At the back face of the
prisms there is total internal
reflection.
Please see the picture below.
What are the Uses of a Periscope?
A periscope may be used by people
1. In a submarine to see above the sea surface.
2. To see over the heads of people in a crowd.
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Waves
Light
Revision Questions
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