Ared laser from the physics lab is marked as producing 632.8-nm light. when light from this laser falls on two closely spaced slits, an interference pattern formed on a wall several meters away has bright red fringes spaced 5.50 mm apart near the center of the pattern. when the laser is replaced by a small laser pointer, the fringes are 5.62 mm apart. what is the wavelength of light produced by the pointer?