A concave lens forms the image of an object which is:

1. virtual, inverted, and diminished
2. virtual, upright, and diminished
3. virtual, inverted, and enlarged
4. virtual, upright, and enlarged.

For a convex lens when the object is at 2F₁, then image is formed at :

1. F₂
2. 2F₂
3. beyond 2F₂
4. infinity

For a concave lens, when the object is at a distance equal to the focal length of the lens, the image is formed at :

1. optical centre
2. second focus
3. first focus
4. mid point between the optical centre and second focus of the lens

A lens forms an inverted image of an object.

(a) Name the kind of lens.

(b) State the nature of the image whether real or virtual?