question_answer

The work done in turning a magnetic of magnetic moment 'm' by an angle of \[90{}^\circ \] from the meridian is 'n' times the corresponding work done to turn it through an angle of \[60{}^\circ \], where 'n' is given by:

A) \[\frac{1}{4}\]                          

B) \[\frac{1}{2}\]

C) \[2\]                 

D) \[1\]