In which of the following the image of an object placed at infinity will be highly diminished and po...........

Physics Chapter - 10

In which of the following, the image of an object placed at infinity will be highly diminished and point sized? [NCERT Exemplar Problems]

Concave mirror only

Convex mirror only

Convex lens only

Concave mirror, convex mirror, concave lens and convex lens.

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Explanation:

The incident ray coming from the object placed at infinity will be parallel to the principal axis. When the parallel beam of light incident on a mirror or lens, irrespective of their nature, after reflection/refraction, will pass or appear to pass through their principal focus. Hence highly diminished and point size image will be formed at their focus.