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4. Two thin parallel slits are separated by a distance of 0.0125 mm. The slits are illuminated with laser light of wavelength 490 nm. a. On a distant screen, (you may assume this distance is very large compared to the slit separation) what is the phase difference (in radians) of the light from the two slits at an angle of 29.0° from the centerline? b. What is the intensity of the light on the distant screen at an angle of 29.0° from the centerline? Ignore any effects of diffraction on the intensity. Your answer should be given as a fraction of the intensity of the central maximum Io. c. At what angle, relative to the centerline, will the maximum that is most distant from the central maximum occur?