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Question
Write an expression for magnification for a lens, explaining the meaning of the symbols used.
Solution
For a lens: Magnification 'm' is the ratio of the height of the image to the height of the object.
m = `"Height of image (h')"/"Height of object (h)" = ("h'")/"h"`
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RELATED QUESTIONS
A student is using a convex lens of focal length 10 cm to study the image formation by a convex lens for the various positions of the object. In one of his observations, he may observe that when the object is placed at a distance of 20 cm from the lens, its image is formed at (select the correct option)
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