To determine the focal length f of a converging thin lens, youplace a 4.00-mm-tall object a distance s to the left of the lens and measurethe height h′ of the real image that is formed to the right of thelens. You repeat this process for several values of s that produce a realimage. After graphing your results as 1/h′ versus s, both in cm, you findthat they lie close to a straight line that has slope 0.208 cm^-2. What isthe focal length of the lens?

In sports photography, one often needs a long telephoto lens with a large aperture. As a designer, you will work with engineers to design some new lens.“ (i) Suppose you want to have an 500mm lens with aperture f/4. Calculate the required iris diameter. Round your answer to the nearest integer and state its unit. “ |(ii) Suppose you want to have a 700mm lens with a surface area of 12271.8463mm². Calculate the f-number. Correct your answer to 2_decimal places.

Lenses with given radii. Object O stands in front of a thin lens, on the central axis. For this situation, each problem in the table (below) gives object distance p, index of refractionnof the lens, radius r of the nearer lens surface, and radius rɔ of the farther lens surface. (All distances are in centimeters.) Find (a) the image distance i and (b) the lateral magnification m of the object, including signs. Also, determine whether the image is (c) real or virtual, (d) inverted from object O or noninverted, and (e) on the same side of the lens as object O or on the opposite side. (a) (b) (c) (d) (e) m R/V I/NI Side r1 r2 +78 1.56 +33 -48 (a) Number i Units i Units (b) Number MacBook Pro

Problem 6: Suppose the shiny back of a spoon has a 2.8 cm radius of curvature. Part (a) Calculate the focal length fof the mirror formed by the shiny back of the spoon in meters. f= sin() cos() tan() 7 8 HOME cotan() asin() acos() E 4 5 6 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END O Degrees Radians VOl BACKSPACE DEL CLEAR Submit I give up! Hint Feedback Part (b) What is the mirror's power, in diopters?

Consider a patient who nad Taser viSion correctiun that reduced the power 07 her eve by l6.5Diproducing normal dstant YISIon For her. what was the previous Far point o7 a patient in meters ? The power qur normal aY VIS1OD 1s 50.0 D. Tht distance of the image tormaTIon in tht eye is a.00 cm FP=? ar D. The o7 in th is 2.00 cm

During LASIK eye surgery (laser - assisted in situ keratomileusis), the shape of the cornea is modified by vaporizing some of its material. If the surgery is performed to correct for nearsightedness, how does the cornea need to be reshaped?

Photographs at a scale of S are required to cover an area X - mi square. The camera has a focal length and focal plane dimensions of 9 * 9in . If endlap is 60% and sidelap 30\% how many photos will be required to cover the area for the data given below?   ▾ Part A   S = 1/6500 ; X = 8 f = 152.4mn   Express your answer as an integer.

An object 0O’, 9.0 cm high, is 17 cm in front of a concave lens with focal length -26 cm. (a) Determine the position and height of its image by Ray Diagram. (b) Compute the position and height of its image, and the magnification with the Lens equation and magnification equation. P F O' C