1.

An electric dipole when placed in a uniform electric field \[E\] will have minimum potential energy, if the positive direction of dipole moment makes the following angle with \[E\] [CPMT 1981; MP PMT 1987]

A.                    \[\pi \]                            
B.            \[\pi /2\]
C.                    Zero
D.                                      \[3\pi /2\]
Answer» D.                                      \[3\pi /2\]


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