The tip of a tower of 210m height is just visible above the horizon from an observer with an eye height of 1.35m. What is the distance between the tower and the observer considering curvature and refraction?
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The tip of a tower of 210m height is just visible above the horizon
from an observer with an eye height of 1.35m. What is the distance
between the tower and the observer considering curvature and
refraction?
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- A man standing on a beach can see the top of a lighthouse 25 km away. If the eye of the man is 1.5 m above sea level, then determine the height of the lighthouse above sea level considering earth’s curvature and refraction correction.5) A person is looking to the horizon, sees a building of height 25 m. What is the least height of this building can be seen from the same position if the refraction is neglected?Question- The combined correction due to curvature and refraction (in m) for a distance of 1 km on the surface of Earth is..
- Find the farthest distance that a man aboard the ship (whose eye level is 5m above water line) can go so that a light house 32m high will still be visible (at least the top of it is visible)? Consider the error of curvature and refraction.In the Newton's Rings apparatus, the light of 615nm and convex-planar lens of radius of curvature 5.6cm are used. When a an unknown liquid is introduced into the air space between the lens and the plate, the diameter of the 13th dark ring is 0.560mm. Find the index of refraction of the liquid. State your answer to the nearest 0.0001.If the thickness of the glass plate of a parallel plate micrometer (in telescope of level instrument) is 25 mm, and if index of refraction from air to glass is 1,59, find approximate angle of tilt to Move the light ray through 3 mm,
- A lake is 20.50km wide. Considering the effect of earth's curvature and atmospheric refraction, what would the height equal tower that can be constructed on the opposite sides of the lake? Select the correct response: 8.67m 8.56m 9.07m 7.09mNeglecting the effect of tide and waves and considering the effect of curvature and refraction, determine how far out to sea a yacht will be, when a light on its mass 55m above the water disappears from the sight of a lifeguard on shore whose eye level is 1.685m above the water.Based from the Figure, a vertical angle of +13°45’ is read to a target 1.23 m above point B. The measured inclined distance S is 823.29 m and the elevation of point A is 123.65 m above the datum. The height of the instrument at A is 1.35 m. Consider the effect of earth’s curvature and refraction. Determine the difference in elevation between A and B Determine the elevation of B
- The combined correction due to curvature and refraction (in m) for a distance of 2 km is:A light house of 120 m height is just visible above the horizon from a ship. Find the correct distance (m) between the ship and the light house considering combined correction for curvature and refraction.A fishing vessel with a green light on its deck, 20.5m above the water, disappears from the sight of a man on shore whose eye level measures 1.50 m above the water. Determine the distance between the vessel and the man considering the effect of earth's curvature and atmospheric refraction Select the correct response: 26.67m 25.45km 23.56km 22.14km