Question

a) In which telescope this type of arrangement of lenses are used?
b) Explain in brief the working of this telescope.
c) How different types of magnification is obtained?
d) Draw the diagram and label it.

pls answer any one question​

Answer 1

Telescopes

(a) Galileo made telescopes with a convex objective and a concave eyepiece. ...

The focal plane of the objective lens of a telescope is very near to the focal plane of the eyepiece. ...

This arrangement of three lenses in a telescope produces an upright final image.