Question

Try matching the object positions to the right image positions for a concave mirror.

• A. At infinity
• B. At the focus F
• C. Between F and C
• D. Beyond C

Answer 1

In a concave mirror, for an object placed at infinity, its image is formed at focus and conversely if the object is placed at focus, its image is formed at infinity.

Secondly, for object between the centre of curvature and the focus, the image is formed beyond the centre of curvature and conversely for any object placed beyond the centre of curvature its image is formed between the centre of curvature and the focus.