What is periscope
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Periscope are still used today in tanks and submarines . A Periscope is just a long tube with a mirror at each end. The mirrors are fitted into each end of the tube at an angle of exactly 45°, so that they face each other.
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Answer:Periscope are still used today in tanks and submarines . A Periscope is just a long tube with a mirror at each end. The mirrors are fitted into each end of the tube at an angle of exactly 45°, so that they face each other.
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