White light ranging from blue (400 nm) to red (700 nm) illuminates a diffraction grating with 8000

Question:

White light ranging from blue (400 nm) to red (700 nm) illuminates a diffraction grating with 8000 lines/cm.
(a) For the first maxima measured from the central maximum, the blue color is (1) closer to, (2) farther from, or (3) at the same location as the red color. Explain.
(b) What are the angles of the first-order maximum for blue and red?