Question

In the figure shown, the image of a real object is formed at point I. AB is the principal axis of the mirror. The mirror must be-

• A. Concave & placed towards right of I
• B. Concave & placed towards left of O
• C. Convex & placed towards right of I
• D. Convex & placed towards left of I

Answer 1

The correct option is A Concave & placed towards right of I

In the given diagram, it can be clearly noted that the image formed after reflection from the mirror is real and inverted. Only a concave mirror can produce real and inverted images, so the mirror is a concave mirror.

Now to find the position of the mirror, let us assume that the mirror is placed between the object and image. The image formed on the right side of a concave mirror can never be real. So the mirror is places towards the right side of the image to obtain a real image.

The mirror will be concave and placed towards right of I