A Person Looks Horizontally at the Edge of a Swimming

question 5

Multiple Choice

A person looks horizontally at the edge of a swimming pool. If its length is 5 m, and the pool is filled to the surface, to what depth (in m) could the observer see? (n for water is 1.33)

• A) 3.2
• B) 4.4
• C) 2.1
• D) 1.0
• E) 0.3

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