Double-slit interference and single-slit diffraction PHYS 222 Lab 6 Homework 5. Predict what will happen to the fringes if you increase the frequency to the blue range or decrease it to the red range. Now perform a numerical experiment to find the wavelengths as in part 8. Record all measured lengths and extract the frequencies of your chosen blue and red lights from the data. 6. Predict what happens to (a) the locations and (b) the brightness of the fringes if we decrease the amplitude to half of its maximum value. Now test your prediction using the simulation. 7. Suppose the distance between the slits were held constant. To make the pattern become more compact, should the wavelength of the light be increased or decreased? Explain. 2