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Chapter 34: Q137P (page 1046)
A cheese enchilada isin front of a converging lens. The magnification of the enchilada is. What is the focal length of the lens?
Focal length of the lens is
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A pinhole camera has the hole a distancefrom the film plane, which is a rectangle of height and width . How far from a painting of dimensions by should the camera be placed so as to get the largest complete image possible on the film plane?
One end of a long glass rod (n=1.5)is a convex surface of radius 6.0cm.An object is located in air along the axis of the rod, at a distance of 10cmfrom the convex end (a) How far apart are the object and the image formed by the glass rod? (b) Within what range of distances from the end of the rod must the object be located in order to produce a virtual image?
Figure 34-34 shows a small light bulb suspended at distance above the surface of the water in a swimming pool where the water depth . The bottom of the pool is a large mirror. How far below the mirror surface is the image of the bulb? (Hint: Assume that the rays are close to a vertical axis through the bulb, and use the small-angle approximation in which )
95 through 100. Three-lens systems. In Fig. 34-49, stick figure O (the object) stands on the common central axis of three thin, symmetric lenses, which are mounted in the boxed regions. Lens 1 is mounted within the boxed region closest to O, which is at object distance p1. Lens 2 is mounted within the middle boxed region, at distance d12 from lens 1. Lens 3 is mounted in the farthest boxed region, at distance d23 from lens 2. Each problem in Table 34-10 refers to a different combination of lenses and different values for distances, which are given in centimeters. The type of lens is indicated by C for converging and D for diverging; the number after C or D is the distance between a lens and either of the focal points (the proper sign of the focal distance is not indicated). Find (a) the image distance i3 for the (final) image produced by lens 3 (the final image produced by the system) and (b) the overall lateral magnification M for the system, including signs. Also, determine whether the final image is (c) real (R) or virtual (V), (d) inverted (I) from object O or non-inverted (NI), and (e) on the same side of lens 3 as object O or on the opposite side.
An object is placed against the center of a thin lens and then moved away from it along the central axis as the image distance is measured. Figure 34-41 gives i versus object distance p out to . What is the image distancewhen ?
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