Which of these combinations of Spherical mirrors can produce a point image ?

Q. The image of an object placed at infinity in front of a convex mirror is formed at the.

Q. An object is placed between a convex and a concave mirror. The pole of the convex mirror coincides with the centre of curvature of the concave mirror. Suppose an object is placed at the focus of the concave mirror. What will be the nature of the image formed by the concave mirror of the image formed by the convex mirror?

Q. What type of image is formed in a convex mirror, when the object is placed at infinity?

Q. A real image, equal in size to the object, is obtained when the object is placed at the centre of curvature in front of
(a) a plane mirror.
(b) a convex mirror.
(c) a concave mirror.
(d) either a convex or a concave mirror.

Q. Draw ray diagrams showing the image formation by a convex mirror when an object is placed

(a) at infinity
(b) at finite distance from the mirror