VARIANT 20 A converging lens has a focal length of 20.0 cm. Locate the image for object distances of (a) 40.0 cm, (b) 20.0 cm, and (c) 10.0 cm. For each case, state whether the image is real or virtual and upright or inverted. Find the magnification in each case.

You have two lenses at your disposal, one with a focal length f1 = 44.0 cm, the other with a focal length f2 = -44.0 cm. If you want to produce an image of the bulb that is enlarged by a factor of 1.70, how far from the wall should the lens be placed? Express your answer with the appropriate units.

Two converging lenses have the same focal length of 5.00 cm. They have a common principal axis and are separated by 29.5 cm. An object is located 10.0 cm to the left of the left-hand lens. What is the image distance (relative to the lens on the right) of the final image produced by this two-lens system? Final image distance = Number i Units

Two converging lenses, each of focal length 15.1 cm, are placed 40.0 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? The image is located 9.6| x 26.3 Your response differs from the correct answer by more than 10%. Double check your calculations. cm in front of the second lens. in front of the second lens. What is the magnification of the system? M = |-3.167 X -2.78 Your response differs from the correct answer by more than 10%. Double check your calculations.X Need Help? Read It

please answer parts b, c, and d

The widest cinema screen in the world was reportedly constructed in New Zealand in 2007. The screen is 30.6 meters (100 feet) wide. Images from a 35-mm wide film are projected onto this screen. Suppose that the screen in the theater is located a distance of 46 m from the projector. Determine the magnification of the image and the focal length of the lens system.

A compound lens system consists of two converging lenses, one at x=−20.0cm with focal length f1=+10.0cm, and the other at x=+20.0cm with focal length f2=+8.00cm. (Figure 1) An object 1.00cm tall is placed at x=−50.0cm. (A) What is the location of the final image produced by the compound lens system? Give the x coordinate of the image. Express your answer in centimeters, to three significant figures or as a fraction.

Consider a lens made to the following specifications: focal length for red light =19.57cm, focal length for blue light =18.87cm Consider an object 5.000cm tall placed a distance 30.00cm from the lens. Assuming that the object reflects both red and blue light, find the ratio of the height of the red image to the height of the blue image.

An upright object is placed a distance in front of a converging lens equal to twicethe focal length of the lens. On the other side of the lens is a converging mirror of focallength , separated from the lens by a distance ; see diagram below. Find the location, nature, and relative size of the final image, as seen by an eye looking toward the mirrorthrough the lens. Draw the appropriate ray diagram

A double convex lens has radii of 5 cm and 20 cm, a thickness of 2 cm and an index of 1.5. Locate the principal planes and focal points and compute the image distance for an object 16.4 cm in front of V₁. Determine the ffl and bfl.