You decide to determine the depth of a tank of water using the sun’s light. With the sun overhead, the tank’s?
You decide to determine the depth of a tank of water using the sun’s light. With the sun
overhead, the tank’s bottom is lit, but as the sun sets the bottom begins to be shaded. The tank is
3.0’ across and the base is shaded when the sun is 48° above the horizon. Approximately how
deep is the tank? Show and Explain all work
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Answer: Depth of tank is about 5.2 feet.
Use Snell's law of refraction:
… n₁ sin θ₁ = n₂ sin θ₂ … where … 1 ---> water … 2 ---> air … retracing the