Identify the incorrect statements among the following.(A) The two cha…

The correct answer is Option (4) → (A) and (C) only

(A) The two charges of an electric dipole will experience force in the same direction when placed in a uniform electric field — Incorrect. The force on \( +q \) is \( q\vec{E} \) and on \( -q \) is \( -q\vec{E} \): they are equal and opposite, so the net force is zero.

(B) The dipole moment is a vector quantity — Correct. \( \vec{p} = q\,(2\vec{a}) \) has both magnitude and direction.

(C) The direction of the dipole moment is from +q charge towards -q charge — Incorrect. By convention the dipole moment points from the negative charge to the positive charge, from \( -q \) towards \( +q \).

(D) The torque acting on the dipole in an electric field depends on the intensity of the field and the dipole moment. — Correct. The torque is \( \vec{\tau} = \vec{p}\times\vec{E} \), of magnitude \( pE\sin\theta \), so it depends on both \( p \) and \( E \).

NCERT (2026-27):
The Field of an Electric Dipole – “… The dipole moment vector p of an electric dipole is defined by

    \( \displaystyle \mathbf{p} = q \times 2a\,\hat{\mathbf{p}} \qquad (1.19) \)

that is, it is a vector whose magnitude is charge q times the separation 2a (between the pair of charges q, –q) and the direction is along the line from –q to q.”

Dipole in a Uniform External Field – “… There is a force qE on q and a force –qE on –q. The net force on the dipole is zero, since E is uniform.”