How does this example of dramatic irony create tension?Readers know that Juliet has no plans to marry Paris. Readers know that Capulet looks forward to his daughter’s marriage to Paris. Readers know that Juliet will obey her father's wishes. Short answer
This creates tension because readers are aware of the conflicting desires of Juliet and her father, as well as the potential consequences of Juliet's obedience to her father. The dramatic irony heightens the suspense as readers anticipate the unfolding of the inevitable clash between Juliet's secret defiance and her father's expectations.
