5.A fishing vessel with a green light on its deck, 10.5m above the water, disappears from the sight of a man on shore whose eye level measures 1.60 m above the water. Determine the distance between the vessel and the man considering the effect of earth's curvature and atmospheric refraction. a) 15.45km b) 16.67m c) 17.34km d) 13,56km

Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Given data  Angle at A for line AB (θAB) =N42°20'E Angle at B for line BC (θBC)  = N30°00'E  Find…

Q: A flagpole appears in two successive photographs taken at an altitude of 2,000 m above datum. The…

A: Given that :- Focal length of the camera = f = 120 mm length of the air base = B  = 200 m Parallax…

Q: The observed altitude of B-ursae Minoris at lower and upper culminations are 29°58′15" and 60°453"…

A:

Q: Calculate the horizontal distance between point A and B if a slope distance of 3,562.15 feet is…

A: The values given  in the question are as follows: Slope distance between A and B(s)=3562.15 ft…

Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Deflection angle=42°20'-30°00'                              =12°20' L

Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Given data in question  Bearings  To find out  Deflection angle

Q: Question- The combined correction due to curvature and refraction (in m) for a distance of 1 km on…

A: Distance d = 1 km,   It is needed to find the combined correction due to curvature & refraction.

Photogrammetry

Photogrammetry is a technology of taking measurements of physical objects present in the environment, using photographs. It includes the process of recording and analyzing a three-dimension image in the two-dimension form. Photogrammetry was invented around 150 years ago in 1851 by Aimé Laussedat, he was also known as the father of photogrammetry, but this method was not in use until 50 years after its invention. This method was first used in Germany by Dr. Albrecht Meydenbauer in 1893 who was the director of the Royal Prussian Photogrammetric institute founded by him.