34.) 5. We perform a multi-slit experiment, using N = 6 slits.The wavelength of the light is lambda = 500nm and the distance ofthe screen from the slits is D = 15m.
a. Determine the distance of the slits, if the 3rd and 4th orderdiffraction fringes are 15mm away from each other.
b. How many major fringes are visible on the diffraction patternif the coherence length of the light is δ= 2 micrometers?
c. How many minor fringes are between between each pair of majorones?
