the focal lenth of a convex lense is taken negative
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Answer:
no is taken postive
because convex lenth is negative
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Explanation:
For focal length, f in lens is always taken as negative for concave and positive for convex. In case of mirror the f is taken as negative if it is in -X side i.e., is in Concave mirror and taken as positive if it is in +X side i.e., is in Convex mirror.
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