Image formed by an objective of a compound microscope is

Solution:

The question asks about the nature of the image formed by the objective of a compound microscope. To understand this, let's consider the basic working of a compound microscope:

A compound microscope consists of two lenses, the objective lens, and the eyepiece lens. The objective lens, which is close to the object being viewed, has a very short focal length and forms a real, inverted, and enlarged image of the object.

This real image formed by the objective lens is then used as the object for the eyepiece lens. The eyepiece lens further magnifies this image and produces a virtual, enlarged, and upright image for the viewer.

Therefore, the image formed by the objective of a compound microscope is real, enlarged, and inverted.

∴ The correct answer is option 4: Real, enlarged and inverted.