In telescopes, at least two converging lenses are used: one for the objective and one for the eye piece. These lenses must be positioned in such a way that the final image is virtual and very much enlarged. In terms of the focal points of the two lenses, how must the lenses be positioned?

Explanation

To determine how the two converging lenses in a telescope should be positioned in relation to their focal points to create a virtual and enlarged final image, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Lenses**: A telescope typically uses two converging lenses: the objective lens and the eyepiece lens. The objective lens gathers light from a distant object and forms a real image, while the eyepiece lens magnifies this image for the viewer.

2. **Positioning of the Objective Lens**: The objective lens is positioned to collect light from a distant source. The focal point of the objective lens (F_O) is where the parallel rays of light converge after passing through the lens.

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