Question

concave lens always forms a virtual image when object is placed at any point on principal Axis w h y​

Answer 1

Answer:

concave mirror can form a erect and a virtual image but also a real and a inverted image

It is convex mirror which can form only virtual and erect image

According to my thinking the statement is false

Answer 2

Answer:

Concave lens always forms a virtual image because it is a diverging lens that diverges the rays so that they can't able to meet at right side of the lens. So by forming an imaginary line we met the rays at left side of the lens. and we know in lens the left side is a virtual part. So the image formed is virtual.