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46. ** Two converging thin lenses (S = 15 cm and f2 = = 20. cm) are separated by 25 cm. A candle is placed 40. cm in front of the first lens. (a) Where will the image of the candle be created by the two-lens system? (b) Describe the properties of the image. Describe how the image changes as the lenses are (c) moved closer together. (d) The lenses are now moved right next to each other. What is the equivalent optical power of the system? What conclusion can you draw?

46. ** Two converging thin lenses (S = 15 cm and f2 = = 20. cm) are separated by 25 cm. A candle is placed 40. cm in front of the first lens. (a) Where will the image of the candle be created by the two-lens system? (b) Describe the properties of the image. Describe how the image changes as the lenses are (c) moved closer together. (d) The lenses are now moved right next to each other. What is the equivalent optical power of the system? What conclusion can you draw?

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Geometric physics q 47
41 46 ** Two converging thin lenses (fi = 15 cm and 52. = 20. cm) are separated by 25 cm. A candle is placed 40. cm in front of the first lens. Where will the image of the candle be created by of (а) the two-lens system? (b) Describe the properties of the image. Describe how the image changes as the lenses are 53. (c) moved closer together. (d) The lenses are now moved right next to each other. What is the equivalent optical power of the system? What conclusion can you draw? 47. * A glass concave-convex lens has radii of 12.0 cm and 14.0 cm, respectively. A 5.00 cm tall object is placed 12.0 cm in front of the lens. Justify your answers to the following questions using equations and ray diagrams. (a) The lens and the object are submerged in water. What is the magnification of the lens? (b) The lens is now surrounded by air. What is the magnification? 54.A 55 Section 28-6 The Human Eye and Vision Correction 48. * A classmate of yours who is not taking any physics courses asks you to explain what it means to be nearsighted or farsighted. Explain to her what each one of the condi- tions means and how each one of these vision problems can be corrected. Draw relevant diagrams to explain your rea- soning. Feel free to use relevant computer simulations. 50 Section 28-7 Brewster's Angle 49. Find Brewster's angle for the water-air interface.
Transcribed Image Text:41 46 ** Two converging thin lenses (fi = 15 cm and 52. = 20. cm) are separated by 25 cm. A candle is placed 40. cm in front of the first lens. Where will the image of the candle be created by of (а) the two-lens system? (b) Describe the properties of the image. Describe how the image changes as the lenses are 53. (c) moved closer together. (d) The lenses are now moved right next to each other. What is the equivalent optical power of the system? What conclusion can you draw? 47. * A glass concave-convex lens has radii of 12.0 cm and 14.0 cm, respectively. A 5.00 cm tall object is placed 12.0 cm in front of the lens. Justify your answers to the following questions using equations and ray diagrams. (a) The lens and the object are submerged in water. What is the magnification of the lens? (b) The lens is now surrounded by air. What is the magnification? 54.A 55 Section 28-6 The Human Eye and Vision Correction 48. * A classmate of yours who is not taking any physics courses asks you to explain what it means to be nearsighted or farsighted. Explain to her what each one of the condi- tions means and how each one of these vision problems can be corrected. Draw relevant diagrams to explain your rea- soning. Feel free to use relevant computer simulations. 50 Section 28-7 Brewster's Angle 49. Find Brewster's angle for the water-air interface.
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