Consider an object at the distance 48 cm from a thin lens made of glass with refractive index 1.50. In air this system forms an image at the distance 12.632 cm
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Consider an object at the distance 48 cm from a thin lens made of glass with refractive index 1.50. In air this system forms an image at the distance 12.632 cm. Find the distance to the image if the system is in water with refractive index 1.33.

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- Consider a converging lens with focal length 8.94 cm. The distance between an object and a real image of the object created by the lens is 41.5 cm. Find the distance between the object and the lens if the lens is closer to the object than it is to the image. Answer in cm.A man standing 1.54 m in front of a shaving mirror produces an inverted image 18.6 cm in front of it. How close to the mirror should he stand if he wants to form an upright image of his chin that is twice the chin's actual size? cm A contact lens is made of plastic with an index of refraction of 1.40. The lens has an outer radius of curvature of +1.92 cm and an inner radius of curvature of +2.47 cm. What is the focal length of the lens? cmYou can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction of a substance that has a critical angle of 51.0° when submerged in carbon tetrachloride, which has an index of refraction of 1.461? (b) What would the critical angle be for this substance in air?
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