CBSE Class 12-science Answered
what is a periscope.
Asked by | 26 Aug, 2008, 11:25: PM
Expert Answer
It is an optical device used to view objects that are above the level of direct sight or are in an obstructed field of vision.In it’s very simple form , it is made up of two mirrors inclined at 45o to the direction being viewed.
Answered by | 27 Aug, 2008, 01:12: AM
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