General Science • PhysicsMedium
If an object is placed at the principal focus of a concave mirror, where is the image formed and what are its characteristics?
A. At infinity, highly magnified and real✓ Correct Answer
B. At the center of curvature, same size and real
C. Behind the mirror, virtual and erect
D. Between the pole and focus, diminished
💡 Solution & Explanation
When an object is placed at the principal focus of a concave mirror, the reflected rays travel parallel to each other and meet at infinity, forming a highly magnified, real, and inverted image. Placing the object at the center of curvature yields an image of identical size at the center. Virtual and erect images are formed only when the object is placed between the pole and the focus.
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