Question

Why do concave lenses always form virtual images?

Answer 1

Answer:

Explanation:

There are two types of images formed by the lenses or mirrors.

1. Real image: When two refracted or reflected rays actually meet at a point after refraction or reflection, the image formed is real.

2. Virtual image: When two refracted or reflected rays appear to meet at a point after refraction or reflection, the image formed is virtual.

A concave lens is a diverging lens, it means when the rays of light incident on the concave lens, then after refraction, the rays diverges from its original path. Thus, they cannot meet at a point, they appears to comes from a point and the image formed is virtual.

Answer 2

A concave mirror and a converging lens will only produce a real image if the object is located beyond the focal point (i.e., more than one focal length away). The image of an object is found to be upright and reduced in size.