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Lecture 17: Chapter 35 (Diffraction)

Thin film interference

Consider two identical microscopic slides in air illuminated with light from a laser. The bottom slide is rotated upward so that the wedge angle gets a bit smaller. What happens to the interference fringes?

spaced farther apart
spaced closer together
no change

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+== Thin film interference ==

Consider two identical microscopic slides in air illuminated with light from a laser. The bottom slide is rotated upward so that the wedge angle gets a bit smaller. What happens to the interference fringes?

<<c>> <<lia(slides_1.png, align = center, width = 70%)>> <<c(1)>>

 A. spaced farther apart
 A. spaced closer together
 A. no change