You are given two objectives and two eyepieces and are instructed to make a telescope with them. The focal lengths of the objectives are 60.0 cm and 40.0 cm, and the focal lengths of the eyepieces are 0.90 cm and 0.80 cm.
(a) Which lens combination would you pick if you want to have maximum magnification? How about minimum magnification? Explain.
(b) Calculate the maximum and minimum magnifications.