Question 5 (1 point) For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser pointer (X = 668 nm) through the slit onto a screen 4.8 m away, a diffraction pattern appears. The bright band in the center of the pattern is 9.5 cm wide. What is the width of the slit? (in micrometers)