Things always look small on viewing through a lens. What is the nature of the lens?

Nature of eye lens is

The power of a lens is -4.0 D. what is the nature of the lens?

The power of lens is -4.0 D. What is the nature of the lens

A lens is a focal length - 0.5 m. What is the nature and power of the lens?

A parallel beam of light passes through a lens held at O as shown in Fig. What is the nature of the lens?

The focal length of a lens is -50 cm. The nature and power of the lens is