Question

If a concave mirror forms real, inverted, and a very small image of an object, then the object should be situated:

• A. at focus
• B. between pole and focus
• C. at center of curvature
• D. at infinity

Hint:

For a concave mirror, when the object is at infinity, the image is formed at the focus and is very small.

Answer 1

The Correct Option is D

The formation of an image in a concave mirror depends on the position of the object relative to the focal point and the center of curvature.
Step 1: Understanding image formation in concave mirrors.
- If the object is placed at infinity, the reflected rays are parallel and meet at the focal point. This forms a real, inverted, and very small image at the focus. - If the object is between the pole and the focus, the image formed will be virtual, erect, and magnified. - If the object is at the focus, the reflected rays are parallel and no real image is formed. - If the object is at the center of curvature, a real, inverted, and the same size image is formed at the center of curvature.
Step 2: Conclusion.
Thus, when the object is placed at infinity, the concave mirror forms a real, inverted, and very small image at the focus. The correct answer is (D).