A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 cm. The object to be photographed is 3.92 m in front of the objective lens. How far behind the concave lens should the film be placed? = +40.8 cm. Precisely 36.6 cm behind this lens is a concave lens with a focal length f2 = -14.8
Q: A simple telescope has an objective with a focal length of 90 cm and an eyepiece of focal length 5…
A:
Q: The magnification produced by a converging lens is found to be 2.4 for an object placed 22 cm from…
A:
Q: A nearsighted woman has a far point of 220 cmcm . What refractive power should the lens have?…
A: A near sighted person can clearly see the nearby object but can't see far object clearly. These…
Q: Q1: The following object and its image are formed by unknown thin lens. What is the type of the lens…
A:
Q: A diverging lens with focal length |f| = 19.0 cm produces an image with a magnification of +0.670.…
A: Here we use lens formula to solve the problem
Q: What is the focal length of this lens with power of 2.50 diopters and the diameter is 5.0 cm O 25 cm…
A:
Q: What is the focal length of a magnifying glass that produces a magnification of 2.67 when held 5.71…
A:
Q: What is the angular magnification of a microscope using an objective with a magnification of 27.5…
A: Given value--- magnification of objective = 27.5 . magnification of ocular = 9.90 . We have to…
Q: A patient has a near point of 42.3 cm and far point of 90.6 cm. Can a single lens correct the…
A:
Q: A magnifying glass has a focal distance of 50 mm. What is the value of its theoretical…
A: Given quantities: focal length of the lens (f) = 50 mm least distance of distinct vision (D) = 25 cm…
Q: To study the physical features of Hydra viridis, a student uses a compound microscope with a…
A: Magnifying power compound microscope(M) = 416Focal length of eyepiece =1.2cmTube…
Q: A diverging lens with focal length || = 10.5 cm produces an image with a magnification of +0.840.…
A: It is given that, the focal length of the f=10.5 cm. For a divergence lens, the focal length is…
Q: When viewed through a magnifying glass, a stamp that is 1.6 cm wide appears upright and 4.3 cm wide.…
A:
Q: A diverging lens with focal length If = 18.5 cm produces an image with a magnification of +0.620.…
A:
Q: What two combinations of a spherical and cylindrical lens produce a composite lens with vertical…
A: Basic Details The spherical lens is the lens which is used to correct the error in blurring of image…
Q: For a given lens, the magnification was found to be twice as large when the object was 0.15m distant…
A:
Q: The student has a far point of 50 cm. If she is wearing glasses 2 cm from her eyes, determine what…
A: The student has a far point of 50 cmhere object distance=50-2=48 cmfrom the formula:1F=1d0-1di
Q: You have an astronomical telescope that has an angular magnification of -132. You find that the…
A:
Q: Neil uses a converging lens (f = 0.19 m) to read a map located 0.090 m from the lens. What is the…
A: A convex lens can form virtual as well as real images, so the magnification produced by a convex…
Q: If f=+150mm (lens), what kind of lens is it? Convex or concave?
A: Focal length is the distance over which the parallel rays of light either converge or diverge. For a…
Q: Unless otherwise stated, the lens-to-retina distance is 2.00 cm. People who do very detailed work…
A: The magnification is given by, m=-did0 di being position of image and d0 being the position of…
Q: A diverging lens with focal length |f = 14.0 cm produces an image with a magnification of +0.650.…
A: Write the given values with the suitable variables.Here, f is the focal length of the diverging lens…
Q: A convergent lens with a focal length of 8 cm has a 1 cm object 4 cm to the left, and a divergent…
A:
Q: The x component of vector A is -28.8 m and they component is +55.2 m. (a) What is the magnitude of…
A: The x component of vector A is −28.8m and the y component is +55.2 m. hence Ax= -28.8 m Ay= +55.2 m…
Q: Find the far point of an eye for which a prescribed lens has an optical power of -2.9 d. _____cm
A:
Q: An object with a height of -0.060 m points below the principal axis (it is inverted) and is 0.180 m…
A: Step 1:Step 2:Step 3:
Q: A librarian can't see objects clearly beyond his far point of 438 cm. Determine the power of the…
A: Given Data :- The focal length is f = 438 cm.
Q: For a converging lens, the object is 16cm from the lens and the image is 26cm from the lens on the…
A: An object is placed at a distance u=16 cm from a converging lens. Image formed in opposite direction…
Q: Neil uses a converging lens (f = 0.12 m) to read a map located 0.090 m from the lens. What is the…
A: The answer is given below
Q: Diogo has a converging lens of focal length ?f. He places an object at position 2?2f in front of it,…
A: Diogo has a converging lens of focal length f. Initially he places the obeject at 2f and get image…
Q: A diverging lens always makes a reduced image. Could you use such a lens to start a fire by focusing…
A: Lenses are of two types converging and diverging. The light gets refracted through a lens. A…
Q: A mother sees that her child’s contact lens prescription is 0.750 D. What is the child’s near point?
A: Given: The contact lens prescription is Pl=0.750 D. The near point of a normal eye is de=25 cm…
Q: How would I find the ratio of micrometers to ocular units and field of vision for each given…
A:
Q: The focal length of a diverging lens is negative. If f = -23 cm for a particular diverging lens,…
A:
Q: An object of height 15.8 cm is placed 16.3 cm from a diverging lens. What is the angular size of…
A: The height of the object is h=15.8 cm. The distance of the object is di=16.3 cm. Angular size of…
Q: What is the angular magnification of a microscope using an objective with a magnification of 24.3…
A:
Q: What will be the magnification if an object is placed 10 cm from a convex lens of focal length 20…
A: Given p=10cm and focal length is 20cm We have to find the magnification value The formula we used…
Q: A camera was used to project an image of an object 20cm in height and 10mm from the hole. Determine…
A: The focal length of the camera lens, f=35 mm Image height, hi=20 cm=200 mm Image distance from the…
Q: The contact lens prescription for a nearsighted person is -4.00 D and the person has a far point of…
A: The expression for the power of the lens is, P=1di+1do (I) di=image…
Q: A diverging lens with focal length|f| = 18.5 cm produces an image with a magnification of +0.830.…
A:
Q: Suppose your 42.0 mm focal length camera lens is 43.5 mm away from the film in the camera. How far…
A:
What is the lateral magnification of this lens combination?
Step by step
Solved in 5 steps with 5 images
- A diverging lens with focal length |f| = 14.5 cm produces an image with a magnification of +0.670. What are the object and image distances? (Include the sign of the value in your answers.) object distance cm image distance cmOliver has had a stamp collection since he was a boy. In those days, holding a stamp 10 cm from his eye gave him a clear image. Now, his near point has receded to 90 cm, so he holds a magnifying lens directly in front of his eye to let him bring stamps closer. To the nearest diopter, what power lens enables him to focus on a stamp 10 cm away?In the attached figure where a Full HD sensor is used, if the Focal Length value is 20 mm, each pixel is square and the edge length is 10 µm and the Working Distance value is 100 m. What is the diagonal length of the Field of View?
- Two converging lenses, each of focal length 14.9 cm, are placed 39.3 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? What is the magnification of the system?While you are photographing a dog, it begins to move away.What must you do to keep it in focus?(a) Increase the f-stop value.(b) Decrease the f-stop value.(c) Move the lens away from the sensor or film.(d) Move the lens closer to the sensor or film.(e) None of the above.Suppose, that two thin converging lenses of focal lengths 10 cm and 20 cm are separated by 20.0 cm, as illustrated in Figure. An object is placed 15.0 cm to the left of lens 1. Find the position of the final image and the magnification of the system.
- hiA 72 year old woman has a near point of 88 cm. What power lens (in diopters) does the woman need in order to be able to see an object clearly at the normal near point of 25 cm? Assume that the woman will get contact lenses, that is neglect the two centimeters that glasses would be away from the eye. 3805 This is an example of farsightedness. The correcting lens (converging in this case) has to move the (virtual) Image of an object placed at the normal near point (o) to the actual near point d the worhan (1). Then you can calculate the focal length of the lens. Remember that the image is virtual. Sub A Incorrect. Tries 1/99 Previous Tries Post Discussion Send FeedbWhat is the magnification of an object 15.0 cm from a 20.0 cm focal length thin spherical lens? O 0.6 inverted O 2 inverted 4 upright O 1.3 upright O 0.75 upright
- A small object is placed to the left of a convex lens and on its optical axis. The object is 46 cm from the lens, which has a focal length of 15 cm. Determine the location of the image formed by the lens. (Enter your answer in cm from the lens.) cm Describe the image. (Select all that apply.) realvirtualuprightinvertedenlargedreducedon the left side of the lenson the right side of the lensAn individual is nearsighted; his near point is 14.0 cm and his far point is 57.0 cm.What lens power is needed to correct his nearsightedness?has a magnifying A compound power of 100 when the image is formed at infinity. The objective has a focal length of 0.5 cm and the tube length is 6.5 cm. Find the focal length of the eye piece.