msayler msayler

28-01-2015
Physics

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Explain how the focal length of a convex lens changes as the sides of the lens become less curved.

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Аноним Аноним

28-01-2015

It is because the focal length of a lens is the distance from the center of the lens to the point at which it focuses light rays. The bigger the focal length, the more powerful the lens.

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