The first position is when the object is at infinity, and the second position is when the object is at a finite distance from the convex mirror.
What are the two positions of the object considered when studying the image formation by a convex mirror?
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When studying image formation by a convex mirror, two positions of the object are considered: beyond the focal point (real position) and between the focal point and the mirror (virtual position).
1. Beyond the focal point: If the object is located beyond the focal point of the convex mirror, the reflected rays diverge. When extended backward, these divergent rays appear to converge at a point behind the mirror, forming a virtual and diminished image.
2. Between the focal point and the mirror: When the object is between the focal point and the convex mirror, the reflected rays diverge. Extended backward, they seem to originate from a point in front of the mirror, creating a virtual and magnified image.