Chapter 17 - Light and Image Formation

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Announcements Reflection and Refraction Image Formation Final QuestionsScenarioA mirror has a focal length of +10.0 cm.QuestionLocate and describe the image for an object distance of 25.0 cm.AnswerBecause the focal length of the mirror is positive, it is a concave mirrorWe expect the possibilities of both real real and virtual imagesBecause the object distance is larger than the focal length, we expect the image to be realTo find the image distance, we use 1/q = 1/f − 1/p and solve for qq = pfp − f(25.0 cm)(10.0 cm)= = 16.7 cm.25.0 cm − 10.0 cmThe magnification of the image isM = − q p= −16.7cm25.0 cm = −0.667.Light and Image Formation
Announcements Reflection and Refraction Image Formation Final QuestionsImages formed by refractionWe will now examine how images are formed when light rays follow the wave under refraction model at theboundary between two transparent materialsIn particular, we will be studying the images formed by thin lensesA thin lens is one whose thickness is negligible compared to its focal lengthImages formed by thin lenses satisfy the same equations as those for mirrorsLight and Image Formation
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Chapter 17 - Light and Image Formation

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