The focal length of a concave mirror is negative while that of a convex mirror is positive, why?
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why focal length of concave mirror is negative | why focal length of concave lens is negative
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If a spherical mirror has negative focal length then it is a. Concave mirror b. Convex mirror c....
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Why the focal length of concave lens is negative? (detailed explanation)
focal length condition to be negative or positive
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why focal length, radius of curvature of a concave mirror negative #physics #class10 #education