Solve the all parts of given problem:
Problem: Monochromatic light falls on two very narrow slits 0.044mm apart. Successive fringes on a screen 6.90m away are 8.2cm apart near the center of the pattern.
Part A: Determine the wavelength of the light?
Part B: Determine the frequency of the light?
Please show your work, so I can understand process. Thanks!