Question

A Man whose eye level is 6.3 ft above the ground is standing by the ocean....

A Man whose eye level is 6.3 ft above the ground is standing by the ocean. He can just see the top of a lighthouse across the water. Neglecting tidal and wave effects, how tall is the lighthouse if it's 20 miles away? The combined effect of curvature and refraction, h is approximately hf = 0.574M^2 = 0.0206F^2. (where M is in miles and F is in thousands of feet)

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Answer #1

We have,
Height of the man
Distance to the light house
Combined effect of curvature and refraction

Let's find combined effect of curvature and refraction for the context:

Now, the height of the light house is defined as:

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