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A pole long is erected in the bottom of deep water. It is observed from the air at an angle of to the horizontal. What is the apparent height of the pool we see? The refractive index of water is 1.33.
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long is erected in the bottom of 
deep water. It is observed from the air at an angle of 
to the horizontal. What is the apparent height of the pool we see? The refractive index of water is 1.33.
.
