Question

when does the concave lens forms virtual image ? draw ray diagram​

Answer 1

Answer:

A virtual image is formed if the object is located less than one focal length from the converging lens. To see why this is so, a ray diagram can be used. A ray diagram for the case in which the object is located in front of the focal point is shown in the diagram at the right.

Answer 2

Answer:

A virtual image is formed if the object is located less than one focal length from the converging lens. To see why this is so, a ray diagram can be used. A ray diagram for the case in which the object is located in front of the focal point is shown in the diagram at the right.