An astronomical telescope which is being used to view a very distant object is said to be in normal adjustment if
-
A.
the final image is at the near-point -
B.
the image formed by the objective is before the focus of the eye piece -
C.
the angular magnification is the ratio of the focal length of the eye-piece lens to that of the objective -
D.
the foci dl the objective and the eye-piece coincide between the lenses -
E.
the distance between the objective lens and the eye-piece is equal to the difference between their focal lengths.