A beam of orange light illuminates two slits that are closely spaced. The resulting intensity pattern is a series of bright and dark fringes. What happens to the intensity pattern if we now change to blue light?
A. The series of bright and dark fringes gets closer together
B. The series of bright and dark fringes spreads out
C. The series of bright and dark fringes changes to circular fringes
D. The series of bright and dark fringes disappears
E. Nothing changes
Answer: A
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