Assume that light of a single color, rather than white light, passes through the two-slit setup described in Example 24-3. If the distance from the central fringe to a first-order fringe is measured to be 2.9 mm on the screen, determine the light's wavelength (in nm) and color (see Fig. 24-12).

5 x 1014 Hz 4 x 1014 Hz 7.5 x 1014 Hz 6 x 1014 Hz IR UV 400 nm 600 nm 700 nm 500 nm