An electric dipole is placed in a uniform electric field of magnitude 40 N/C. Graph shows the magnitude of the torque on the dipole versus the angle θ between the field and the dipole moment . The magnitude of dipole moment is equal to :
(A) 1.25 × 10–28 C-m
(B) 2.0 × 10–25 C-m
(C) 2.5 × 10–28 C-m
(D) 5.0 × 10–28 C-m
