which mirror has a +ve focal length??
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f, the focal length, is positive for a concave mirror, and negative for a convex mirror. When the image distance is positive, the image is on the same side of the mirror as the object, and it is real and inverted. When the image distance is negative, the image is behind the mirror, so the image is virtual and upright.
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Answer:
convex mirror
Explanation:
distance in a mirror is measured from the origin
The distance which is measured from the origin in the direction of light is considered as positive and vice versa
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