A concave mirror of radius of curvature 50 cm is used to form an image of an object kept at a distance of 25 cm from the mirror on its principal axis. What will be the position of the image from the mirror?
- A. At infinity ✓
- B. At 50 cm
- C. At 25 cm
- D. At 75 cm
Correct Answer: A. At infinity
Explanation
The focal length f = R/2 = 25\text{ cm}. Since the object is placed at a distance of 25 cm (exactly at the focus), the image will be formed at infinity.
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