Focal length of a convex lans
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The focal length of a concave mirror is negative while that of a convex mirror is positive, why?
focal length condition to be negative or positive
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Why focal length of convex lens is positive? (detailed explanation)
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Why the focal length of concave lens is negative? (detailed explanation)
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The linear magnification of a convex mirror is (A) always positive (B) always negative (C) somet...
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