A dipole is formed by two point charge -q and +q, each of mass m, and both the point charge are connected by a rod of length `l` and mass m. This dipole is placed in uniform electric field `vec(E)` If the dipole is disturbed by a small angle `theta` from stable equilibrium position, prove that its motion will be almost SHM. also find its time period.

Explanation

To solve the problem step by step, we will analyze the behavior of a dipole in a uniform electric field when it is disturbed from its equilibrium position.

### Step 1: Understanding the Dipole in an Electric Field
A dipole consists of two equal and opposite charges, -q and +q, separated by a distance `l`. The dipole moment \( \vec{P} \) is given by:
\[ \vec{P} = q \cdot \vec{l} \]
where \( \vec{l} \) is a vector pointing from the negative charge to the positive charge.
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