Interference and diffraction: (35 pts) a laser of wavelength 510 nm is incident on two slits, which are separated by a center-center distance of 1500 nm. the pattern from the two slits is projected onto a screen 75 cm away from the slits. a. what is the angle corresponding to the first dark spot from the center due to interference between the two slits? what is the path length difference and phase difference between the rays at this angle? (8 pts) b. what is the angle corresponding to the first bright spot from the center? what is the path length difference and phase difference between the rays at this angle? (8 pts)
sketch the angles (qualitatively) that correspond to non e for gach. how minima along with the phase difference and path length difference for is the maximum path length difference)? (9 pts) y bright and dark spots show up on the screen or, to put it another way. what d. ir the first dark spot from diffraction is at an angle of 54 degrees, find the width of the slits. (5 pts) e. if the slit pattern were replaced with slits of identical spacing, but twice as wide, how would your answers to c and d change (qualitatively)?