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Calculate a, the diameter of the wire placed in the path of a laser of wavelength 532 nm. The screen is at a distance D=185

Calculate a, the diameter of the wire placed in the path of a laser of wavelength 532 nm. The screen is at a distance D=185 cm, and the first minima, m=1, located at y=0.21 cm, and the second minima, m=2, located at y= 0.85 cm. (You do not need to show the calculation for slope.)

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