A person in the air above the water in a swimming pool looks straight down into the water (n = 1.33) at a diamond ring that lies on the bottom of the pool. If the image of the ring is 1.20 m below the surface of the water, what is the depth of the water (the distance from the surface of the water to the bottom of the pool)? Hint: Assume θ<<1, so sinθ=θ, and tanθ=θ, for a θ in radians.
(a) 0.60 m
(b) 0.90 m
(c) 1.20 m
(d) 1.60 m
(e) 2.40 m
(f) none of the above answers
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