During the Iddat is it permissible for the woman to apply perfume and adorn herself to attract her husband with the hope of reconciling?

Answer

If the Talaaq is Talaaq-e-Raj'i (a revocable Talaaq), then in fact she should adorn herself to attract her husband with the intention of reconciliation. But if it is Talaaq Baa-in (a Talaaq which cannot be revoked), then adornment is not permissible.