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QUESTION
-What is meant by the focal length of a lens or mirror? What is the difference between the focal length of a lens and the image distance?
-What is meant by the focal length of a lens or mirror? What is the difference between the focal length of a lens and the image distance? Under what conditions are the focal length and image distance the same?-What is the lens equation? Define all terms.-Define magnification. -What is a real image-What is a virtual image-What is a ray diagram? What are 3 principle rays?
-What is meant by the focal length of a lens or mirror? What is the difference between the focallength of a lens and the image distance? Under what conditions are the focal length and image...