An astronomical telescope has `f_(o)= 200 cm` and `f_(epsilon) = 4cm`. Telescope is focused to see an object 10 km from the objective. Final image is formed at infinity. Find length L of the tube and the angular magnification of telescope.

Explanation

To solve the problem, we need to find the length of the tube \( L \) of the telescope and the angular magnification \( M \).

### Step 1: Calculate the Length of the Tube \( L \)

The length of the tube \( L \) of an astronomical telescope is given by the formula:

\[
L = f_o + f_e
...