B. Double Slit Devise an experiment to measure the wavelength of the laser light using a double slit. You will need the Multiple Slit Set for this part. Use two double slits of different spacings and average your results. Note that in the equation, the only unknown variable is A while the other variables are known or measurable. Remember that the equation gives the positions of the maxima and that you should measure the distances between the small dark areas inside the single slit envelope, not the large-spaced distances between the single slit envelope minima. Since these distances are smaller than that of the single slit, you may wish to measure the width of the central single-slit envelope and divide by the number of slits therein - this is similar to determining the thickness of a single page of a book by measuring the book's thickness and dividing by the number of pages