Question

where should we keep an object, in front of concave mirror, so as to get a virtual and magnified image of it

Answer 1

An object should be keep between and pole in the front the concave mirror get a virtual and magnified image on it .

Answer 2

An object should be placed within the focus that is, between the pole and the focus, in front of the concave mirror in order to get a virtual, magnified, and erect image.

We get different images when we get to put an object at different positions in front of the mirror. A concave mirror is a converging mirror. When parallel incident rays fall on the surface of the mirror, the rays meet at a particular point to form an image. Depending on what position the object is kept in front of the mirror, the types of images may vary from real, inverted to virtual, erect, and to magnified and diminished.