Question

Answer the following question in detail.

What is the limitation in increasing the magnifying powers of the astronomical telescope?

Answer 1

In the case of telescopes,
M = `"f"_"o"/"f"_"e"`
Where f_o = focal length of the objective
f_e =focal length of the eye-piece
The length of the telescope for normal adjustment is, L = f_o + f_e .
Thus, the magnifying power of the telescope can be increased only within the limitations of the length of the telescope.