Solve the each part of given question:
Question: In a large vacuum chamber, monochromatic laser light passes through a narrow slit in a thin aluminum plate and forms a diffraction pattern on a screen that is 0.620m from the slit. When the aluminum plate has a temperature of 20.0 degrees Celsius, the width of the central maximum in the diffraction pattern is 2.02mm.
Part A: What is the change in the width of the central maximum when the temperature of the plate is raised to 700.0 degrees Celsius?
Part B: Does the width of the central diffraction maximum increase or decrease when the temperature is increased?
Rework your solution from the beginning and check each step carefully.