Review. An electric dipole in a uniform horizontal electric field is displaced slightly from its equilibrium position as shown in Figure P22.50, where is small. The separation of the charges is , and each of the two particles has mass m.
(a) Assuming the dipole is released from this position, show that its angular orientation exhibits simple harmonic motion with a frequency,
(b) Suppose the masses of the two charged particles in the dipole are not the same even though each particle continues to have charge q. Let the masses of the particles be m1 and m2. Show that the frequency of the oscillation in this case is
