A lens has a convex surface of radius 20 cm and a concave surface of radius 40 cm and is made of glass of refractive index 1.54. Compute the focal length of the lens and state whether it is a converging or diverging lens A 74 cm, diverging B 72 cm, converging 74 cm, diverging 74 cm, converging

Q: A + 2.5 + 4 + 3m 3- Calculate 500kN H 4 + 4m D=25mm ku 66 D=35mm D=45mm Z=20x10 AVA-? M

A: E = 2 × 105 N/mm2 L1 = 2.5m = 2500mm L2 = 4m = 4000mm L3 = 3m = 3000mm Determine the vertical…

Q: Irina finds an unlabeled box of fine needles and wants to determine how thick they are. A standard…

A: Step 1:Screen distance (D)=23.7 mDiameter of the central bright circle (d)=18.2 cm=0.182 mwavelength…

Q: 8 In a stereo pair, which of the following statements is true (multiple choice questions) A. The…

A: Stereo pair is the pair of photos of same area taken from the aerial survey that are taken at 2…

Q: •• A concave mirror has a radius of curvature equal to 24 cm. Use ray diagrams to locate the image,…

A: Given Distances: 55cm, 24cm, 12cm, 8cm

Q: An oil well contains water at the bottom, oil floating on it, and air above the oil. You performed…

A: Let us support x, y, z are length of air , oil and water section in the well..: Depth of well=x+y+z…

Q: 2. Given: Shaded area shown below Find: (1) moment of inertia of shaded area about x-axis and (2)…

A: To Determine: Part (1): The moment of inertia of shaded area about the x-axis. Part (2): The moment…

Q: The focal length of the object glass of a tacheometer is 200 mm, the distance between the vertical…

A: Tacheometer surveying- Middle staff intercepts, s = 2  Spacing, i = 4 mm Focal length, f = 200 mm.…

Q: Locate the center of mass of the homogeneous rod bent into the shape of a circular arc.

A: Given: Rod bent into circular arc

Q: 2. 3. An object and a plane of reflection are shown on the left below. Select the reflected image…

A: In above question , only by visual inspection we can find the answer . In above problem reflected…

Q: y Given: The shaded area as shown in the figure. 100 mm--100 mm- 150 mm Find: The moment of inertia…

A: step 1-

Q: A vertical photograph of a flat area having an average elevation of 250 metres above mean see level…

A:

Q: A 2.5 cm object is placed 30 cm in front of a converging lens. Behind the lens, 80 cm away, is a…

A: Step 1: Step 2: Step 3: Step 4:

Q: A collimated beam of sodium light (λ = 589.3 nm) is incident normally on a Wollaston prism…

A:

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.