The figure below shows the result of a double-slit diffraction experiment with light of wavelength 501 nm. The pattern is closely spaced bright and dark fringes. Only the central portion of the pattern is shown. Except for the missing spots, the bright spots are separated by a distance of y= 1.72 mm. The pattern is observed on a screen that is 3.85 m from the slits. How far apart are the slits (in mm)? i mm y

Light with a wavelength of 750nm shines normally on a double slit. The fourth order (m=4) bright fringe is observed at an angle of 1.5 degrees. What is the distance between the slits? At what angle will the first order (m = 1) bright fringe be observed?

Light with a single wavelength of 1 = 461 nm goes through two narrow slits. The light strikes a screen which is a distance L = 2.77 m away. The resulting light intensity pattern is shown below. Each slit has a width of "a", and the separation of the slits is "d". a L a. The interference pattern has its 4-th dark spot (destructive interference) at a distance of y4 = 3.59 mm from the central bright spot. What is the separation "d" between the two slits? Convert your answer to millimeters. (Be careful. The first dark spot is m = 0!) mm b. What is the angle, 0, to this 4-th dark spot of the interference pattern? degrees c. If the 4-th dark spot of the interference pattern is at the same location of the first dark spot of the diffraction pattern, what is the width of each slit "a"? Convert your answer to millimeters. mm be