(Solved): 9. The diffraction pattern shown in the figure is produced by passing laser light \( (\lambda=590 \ ...

9. The diffraction pattern shown in the figure is produced by passing laser light \( (\lambda=590 \mathrm{~nm}) \) through a single slit and viewing the pattem on a screen \( 2.55 \mathrm{~m} \) behind the slit. What is the width of the slit if the distance between the dashed lines is \( 19.2 \mathrm{~cm} \) ?