Question

Wire-making machinc 2.60 m Wire He-Ne laser Figure 37-50

Manufacturers of wire (and other objects of small dimensions) sometimes use a laser to continually monitor the thickness of the product. The wire intercepts the laser beam, producing a diffraction pattern like that of a single slit of the same width as the wire diameter (see Fig. 37-50). Suppose a laser of wavelength 648.2 nm, illuminates a wire, and the diffraction pattern appears on a screen 2.52 m away (do not use the number shown in the diagram). If the desired wire diameter is 1.48 mm, what is the observed distance between the two tenth-order minima (one on each side of the central maximum)?

Answer 1

cl cl 3