Wavelength 3'1. a. Increase the wavelength by changing the source color to a deep red. Set the point of the color selector approximately one centimeter from the far right end of the spectrum. Record your observations. b. What difference if any does increasing the wavelength [3%.] have on the fringe pattern spacing (y)? y is. y if is. y does not depend on i"... c. Based on your conclusion, reducing the wavelength will cause the pattern to contract (decrease y) expand (increase y) remain the same. d. Reduce the wavelength by selecting a bright bluei'violet color. Doing so makes the wavelength shorter than it was in the initial setup. (lf the central maximum is not well dened, try reducing the slit width a little.) Describe the result and state whether or not it is consistent with your conclusion. c. Return the color to yellowgreen (and the slit width to 520 mu) so that the initial setup is restored