Part 1) Babinet's principle states that the diffraction pattern of an opaque (does not allow light to pass through) body is identical to that of an aperture of the same size (with the exception of the intensity of the central maximum). We can use this principle to determine the diffraction pattern obtained by shining a laser of A = 595 + 5 nm onto a steel wire of width w = 0.513± 0.001 mm, i.e. making the wire block a width w = 0.513 of the laser light. Calculate the angle e in radians of the m = 3 diffraction minimum when viewed on a screen at distance D = 6.74± 0.01 m? rad

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