Write the following steps in sequential order to determine nature of the image formed by a concave mirror where an object is placed at the centre of curvature with the help of a ray diagram.
(A) Mark the position of the object infornt of the mirror at the centre of curvature.
(B) Draw a diagram, which represents a concave mirror.
(C) Draw two lines one passing through F and another line parallel to the principal axis and draw the path of the reflected rays.
(D) Draw the principal axis and mark the centre of curvature and principal focus.
(E) Mark the position of the image and study its nature.

Options

A. BDACE
B. BCADE
C. ABDCE
D. ABCDE

Answer

A

Explanation

Initially the diagram of a concave mirror is drawn (B). The principal axis is drawn. The centre curvature and principal focus are marked (D). The object is placed on the principal focus (A) and a light ray traveling parallel to the principal axis and another passing through the principal focus are drawn. Now the path of the corresponding reflected rays are drawn and at the point of intersection of these rays the position of the image is marked (C). The nature of the image is studied E.