The figure shows two points source which emit light of wavelength `lambda` in phase with each other and are at a distance `d = 5.5 lambda` apart along a line which is perpendicular to a large screen at a distance L from the centre of the source. Assume that d is much less than L. Which of the following statement is (are) correct ?

Options

A. only five bright fringes appear on the screen
B. only ten bright fringes appear on the screen
C. Point y = 0 corresponds to bright fringe
D. Point y = 0 corresponds to dark fringe.

Answer

B, D