A single slit of width b is illuminated by coherent monochromatic light of wavelength ?. If the
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A single slit of width b is illuminated by coherent monochromatic light of wavelength ?. If the second and fourth minima in the diffraction pattern at a distance 1 m from the slit are at 3 cm and 6 cm, respectively from the central maximum, what is the width of the central maximum? (i.e. the distance between the first minimum on either side of the central maximum)
(a) 6.0 cm
(b) 1.5 cm
(c) 4.5 cm
(d) 3.0 cm
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