A red He-Ne laser with a wavelength of 632.8 nm illuminates two narrow horizontal slits with gap distance 0.200 mm. A pattern of interference bands then appears on a screen 1.00m from the columns.
a) How far from the central maximum, in both radians and millimeters on the screen, is first minimum?
b) How far in millimeters on the screen, is the fifth maximum from the central maximum?
c) How big is the intensity in the fifth maximum compared to the intensity in the central maximum if the gap width is half the gap distance?
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