A single slit diffracts laser light of wavelength 610 nm onto a screen 2.25 m away. The distance between the two first-order maxima on either side of the central peak is 4.00 mm. How wide is the slit? Anyone give me some help? i got an answer of .001029m and apparently this isnt correct. i used the formula for locating the minima [tex]a\cdot \sin(\theta) = (\lambda)[/tex] . Since the second minima is located where [tex](\lambda)[/tex] is multiplied by 2. i multiplied the equation on the right side by 3/2 assuming the maxima would be found between both minima.