Xrays can not onlyr diI'Fract from atoms, but in special cases from slits as well. just like visible light. Consider monochromatic light with a wavelength of J. 2 I113 nm diffracting through a square slit with a width of d = I la m. A screen is placed Ill? meters {19? m] away from the slit. [a] Sketch a graph of the diffraction pattern (intensity) formed on the screen. Include units on the xaxis to label the local minima and maxima. [b] Is the small angle approximation reasonable in this case to calculate the positions of the rst Ill fringes? Show why using the known intensity for singleslit diffraction and showing what numher must be small, and how small it is. (c) Lahel the positions of the first three local maxima and minima on your graph in units of mm. (d) Imagine you had a detector with pixels that were 1!] Jam wide. How close could you place the detector to the square slit and still see the interference? In this condition. the pixel size matches half a fringe, so one pixel is bright and the next is dark