The bright yellow sodium line in the sodium spectrum is actuallya pair of closely spaced lines at 589.0 nm and 589.6 nm. Youobserve the sodium spectrum using a diffraction grating with aspacing of 1700 nm . Find the angular separation between the twosodium lines in first order. Find the angular separation betweenthe two sodium lines in second order. Express your answer to twosignificant figures and include the appropriate units.
