Answer:
The effect that Shakespeare's uneven use of iambic pentameter has on the reader is to make some lines stand out, making them appear more important than others.
Step-by-step explanation:
Shakespere was a grateful lover of the iambic pentameter, you can see that in many of his works. The iambic pentameter is a literary technique that allows an enveloping sound in the text. This technique unites in a single line a stressed syllable accompanied by an atonic syllable, creating a much appreciated rhythm in the line, which brings a certain musicality in the work. Using this technique, Shakespere wanted to create an effect that would give the reader a sensation beyond musicality. Shakespeare used the iambic pentameter to create the feeling that some lines stand out, making them look more important than others.