NDA General Science Physics Questions Part 3

Consider the following statements about a microscope and a telescope :
1. Both the eyepiece and the objective of a microscope are convex lenses.
2. The focal length of the objective of a telescope is larger than the focal length of its eyepiece.
3. The magnification of a telescope increases with the increase m focal length of its objective.
4. The magnification of a microscope increases with the increase in focal length of its objective.
Which of the statements given above are correct?