Question 421Navigation General

The correct answer is C) 11.7 nm. The formula to calculate the distance at which you will sight the light is: Distance to Horizon (in nautical miles) = 1.17 x √(height of eye in feet) + 1.17 x √(height of light in feet) Plugging in the given values: Distance to Horizon = 1.17 x √(15 feet) + 1.17 x √(38 feet) = 1.17 x 3.87 + 1.17 x 6.16 = 4.53 + 7.22 = 11.75 nm Since the visibility is 6 miles (or 6 nm), the distance at which you will sight the light is 11.7 nm, which is the closest answer provided. The other options are incorrect because they do not accurately calculate the distance to the horizon based on the given information.