Question

If convex lens is used as magnifying glass what should be the position of the object ? What is the reason for this?​

Answer 1

Name the lens which can be used as amagnifying glass. For which position of the object a convex lens form: ... Aconvex lens forms a virtual and erect image of the object when the object is placed between focus F1 and optical center O. The image is formed on the same side of the lens as the object.

Answer 2

Convex, virtual image. If the object is within the focal length of the lens a virtual image is formed. Light rays on the observer side are diverging but appear to come from a point corresponding to a larger upright (virtual) object. This is the case for the magnifying glass when used to magnify things.