Magnifying power of an astronomical telescope for normal vision with usual notation is

Options

A. a) `-f_(0)//f_(e)`
B. b) `-f_(0) xx f_(e)`
C. c) `-f_(e)//f_(0)`
D. d) `-f_(0) + f_(e)`

Explanation

In normal adjustment of the telescope, `m = -f_(0) // f_(e)`