How light through a periscope
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In a periscope, light from an object strikes the top mirror at 45° and bounces off at the same angle. This sends light directly down the tube and onto the lower mirror. This mirror, also at a 45° angle, reflects light directly to your eye.
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periscope uses the property of reflection of light. It is made up of a wooden or metal box with 2 mirrors in an angle of 45 degree each facing each other. When light from an object falls on the 1st mirror it reflects on the 2nd mirror and reaches our eyes
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