A. bright fringes are wider than dark fringes
B. dark fringes are wider than bright fringe
both dark and bright fringes are of equal width
central fringes are brighter than the outer fringes
A. bright fringes are wider than dark fringes
B. dark fringes are wider than bright fringe
both dark and bright fringes are of equal width
central fringes are brighter than the outer fringes