Question

Which are the components of a typical refracting telescope?

1.convex object and eyepiece
2. concave object and convex eyepiece
3. covex object and concave eyepiece

Answer 1

The typical components of a refracting telescope are a convex objective lens and a convex eyepiece lens, which together create a magnified, inverted image of distant objects.

Step-by-step explanation:

The components of a typical refracting telescope include a convex objective lens and a convex eyepiece lens. Galileo initially made telescopes with a convex objective and a concave eyepiece, producing an upright image. However, most modern simple refracting telescopes, which are not Galileo's design, consist of two convex lenses. The convex objective forms a real, inverted image (case 1 image) at the focal plane of the eyepiece, and this real image serves as the object for the eyepiece. The convex eyepiece then forms a virtual, magnified, and inverted image (case 2 final image).

To answer the student's question, option 1 is correct for most refracting telescopes: they consist of a convex object and eyepiece lens arrangement to magnify distant objects.