Explain why the periscope no long works

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A periscope for a submarine uses two totally reflection 45°-45°-90° prisms with total internal reflection on the side adjacent to the 45° angles. It springs a leak, and the bottom prism is covered with water. Explain why the periscope no long works. (nprism = 1.52, nwater = 1.33).

Reference no: EM13544761

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