To get a virtual, erect and enlarged image behind a concave mirror, where should the object be placed?

Correct option is A

The correct answer is (a) Between pole P and focus F.
· In a concave mirror, when an object is placed between the pole (P) and focus (F), the mirror forms a virtual, erect, and enlarged image behind the mirror.
· This type of image is formed because the reflected rays diverge, and when extended backward, they appear to meet behind the mirror.
· This image is not real, as it cannot be projected onto a screen, but it is larger than the object and upright.
Explanation of Other Options:
· At the centre of curvature (C): The image formed will be real, inverted, and of the same size as the object, located at the centre of curvature.
· At focus (F): No image is formed because the reflected rays become parallel, and the image is formed at infinity.
· Between centre of curvature (C) and focus (F): The image formed will be real, inverted, and larger than the object but not virtual.