Question

If an object is at infinity (very large distance) in front of a concave mirror, where is the image formed?

Answer 1

When the object is at infinity, the distance of the image from a concave mirror is equal to the focal length. When the object is at at a large distance from a concave mirror the image formed would be very close to the focus. The distance of the image from the mirror would be slightly more than the focal length.

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Answer 2

Explanation:

The image is formed at focus.