Final answer:
Ferdinand and Miranda are revealed to the others in Act 5 of The Tempest by Prospero through a magic spell.
Step-by-step explanation:
In Act 5 of William Shakespeare's play The Tempest, Ferdinand and Miranda are revealed to the other characters through a magic spell performed by Prospero, Miranda's father. This moment unveils Prospero's schemes and brings about the reconciliation and resolution of the play's various subplots. The union of Ferdinand and Miranda is a symbol of harmony and happiness that concludes the dramatic tensions of the narrative.