How is black humour used in Act IV HAMLET?

In Act IV of "Hamlet," black humor is used to highlight the absurdity and tragedy of the characters' situations. For instance, when Hamlet encounters the corpse of Polonius and quips about the location of the body, it underscores the grim reality of death while simultaneously revealing Hamlet's complex attitude toward mortality and madness. This use of dark wit serves to deepen the play's exploration of existential themes and the futility of life, contrasting moments of levity with the surrounding chaos and tragedy.