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43. * A lens for an old-fashioned 35 mm camera has a focal length of 45 mm. (a) How close to the film should the lens be placed to form a sharp image of an object that is 6.0 m away! (b) What is the magnification of the image on the film 44

43. * A lens for an old-fashioned 35 mm camera has a focal length of 45 mm. (a) How close to the film should the lens be placed to form a sharp image of an object that is 6.0 m away! (b) What is the magnification of the image on the film 44

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Geometric optics q 43
the lens are given to two significant figures. What is the angle of deflection (the angle between (b) At what point will the ray exit the prism? the incident and refracted beams) for this ray as it (a) What is the magnification when the ambient (b) Justify your answer to part (a) using the law of How will your answers to parts (a) and (b) change if instead of an He-Ne laser (which produces a mono- chromatic light), white light were used for this question? glass prism at an angle of 60°, 5.0 cm above its base, as shown in Figure 28-55. Assume that the dimensions of 42. A ray of He-Ne laser light is incident on a 45 90-45 45. A thin lens has a focal length of -4.00 cm. Justify your finger? m in front of Secti 48. in diameter. "SUC Tormed? (а) pe, orienta- exits the prism? nyex mirror. change? eper decides nvex mirror -duty glass the mirror (c) Sec glass 49. store. ror be for He-Ne 60° laser CO is mirror, What are 145° 450 50 15cm Figure 28-55 Problem 42. Г 3.0 ст rmal. By long the at is the m leaves the slab Section 28-5 Images Formed by Thin Lenses 43. A lens for an old-fashioned 35 mm camera has a focal length of 45 mm. (a) How close to the film should the lens be placed to form a sharp image of an object that is 6.0 m away! (b) What is the magnification of the image on the film? 44. ** A plastic magnifying lens (n fication of 2.5 when the object-lens distance is 4.0 cm. The lens is placed in a large container filled with watel. and its magnification is measured when the object-lens distance is once again 4.0 cm. at the water. of the 1.45) has a magni- imate. nce in n oil? deep coin medium is water? refraction. рear ssary VOur answere t
Transcribed Image Text:the lens are given to two significant figures. What is the angle of deflection (the angle between (b) At what point will the ray exit the prism? the incident and refracted beams) for this ray as it (a) What is the magnification when the ambient (b) Justify your answer to part (a) using the law of How will your answers to parts (a) and (b) change if instead of an He-Ne laser (which produces a mono- chromatic light), white light were used for this question? glass prism at an angle of 60°, 5.0 cm above its base, as shown in Figure 28-55. Assume that the dimensions of 42. A ray of He-Ne laser light is incident on a 45 90-45 45. A thin lens has a focal length of -4.00 cm. Justify your finger? m in front of Secti 48. in diameter. "SUC Tormed? (а) pe, orienta- exits the prism? nyex mirror. change? eper decides nvex mirror -duty glass the mirror (c) Sec glass 49. store. ror be for He-Ne 60° laser CO is mirror, What are 145° 450 50 15cm Figure 28-55 Problem 42. Г 3.0 ст rmal. By long the at is the m leaves the slab Section 28-5 Images Formed by Thin Lenses 43. A lens for an old-fashioned 35 mm camera has a focal length of 45 mm. (a) How close to the film should the lens be placed to form a sharp image of an object that is 6.0 m away! (b) What is the magnification of the image on the film? 44. ** A plastic magnifying lens (n fication of 2.5 when the object-lens distance is 4.0 cm. The lens is placed in a large container filled with watel. and its magnification is measured when the object-lens distance is once again 4.0 cm. at the water. of the 1.45) has a magni- imate. nce in n oil? deep coin medium is water? refraction. рear ssary VOur answere t
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