3. Interference: Consider the double slit experiment conductedin lab. You now have a new double slit slide to analyze. On thewall 1.75m away from the slits, the first minima occurs 0.65 mm tothe side of the central maxima when using the red laser(wavelength=633 nm).
a) Find the slit spacing.
b) If the fourth maximum (from the central maximum) is missing,what is the slit width? Be sure to justify your answer with theappropriate equation(s).
c) What is the double slit phase at the third double slitminima?
d) What is the single slit phase at the third double slitminima?
e) What is the combined intensity at the third double slitminima?