Question

comment on the position and nature of image formed when the object is placed at:- (i)infinity(ii)focus(iii) centre of curvature in front of convex lens

Answer 1

1.An infinity mirror is a pair of parallel mirrors, which create a series of smaller and smaller reflections that appear to recede into an infinite distance. They are used as room accents and in artwork.

2.A principal focus or focal point is a special focus: For a lens, or a spherical or parabolic mirror, it is a point onto which collimated light parallel to the axis is focused.

3. Centre of curvature is the centre of the sphere of which the spherical mirror is a part.

Answer 2

Centre of curvature in in front of convex lens