Coherent green light with a wavelength of 500 nm illuminates two narrow vertical slits a distance 0.12 mm apart. Bright green stripes are seen on a screen 2 meters away. (a) How far apart are these...

Coherent green light with a wavelength of 500 nm illuminates two narrow vertical slits a distance 0.12 mm apart. Bright

green stripes are seen on a screen 2 meters away.

(a) How far apart are these stripes, center-to-center?

(b) Do they get farther apart or closer together if you move the slits closer together?

(c) Do they get farther apart or closer together if you use violet light (wavelength = 400 nm)?