The magnetic field lines in a non-uniform magnetic field are :
(a) either converging or diverging
(b) parallel and equispaced
(c) only converging
(d) only diverging

(a) either converging or diverging

Reason — The magnetic field around a bar magnet (or horse shoe magnet) is non-uniform. The magnetic field lines in a non-uniform magnetic field are not equispaced and parallel, but they are curved (either converging or diverging).