Why are the two-source interference equations not valid for light from an incandescent bulb that shines onto a screen with a single slit, and then the light shines onto a screen with two slits in it and the light from the two slits finally shines onto a nearby screen? not monochromatic sources incoherent sources observed from a distance similar to or smaller than the separation between the sourc

A laser beam is normally incident on a single slit with width 0.620 mm. A diffraction pattern forms on a screen a distance 1.35 m beyond the slit. The distance between the positions of zero intensity on both sides of the central maximum is 2.18 mm. Calculate the wavelength of the light (in nm). nm Need Help? Read It

Monochromatic, coherent light is incident upon a pair of narrow slits. Which of the following types of maxima are closest together? 1) the interference maxima are closest together 2) both diffraction and interference maxima are spaced equally 3) the diffraction maxima are closest together

Narrow, equally spaced vertical slits with equal widths are located at a distance of D = 2.47 m from a screen. The intensity pattern in the figure is observed when light with wavelength = 570 nm from a laser passes through the slits, illuminating them uniformly. The screen is perpendicular to the laser beam. 0 1 2 3 4 5 6 7 8 9 cm 7 The number of slits is ... Submit Answer Incorrect. Tries 1/3 Previous Tries Calculate the center to center spacing between the slits. Use the cm scale to measure distances on the screen. 2.25x10^-6 cm There is a fixed relation between wavelength, slit separation, and angle between the first (or second, third etc) order maximum and the central maximum. The angle can be determined from the distance to the screen and the separation between the first maximum and the central maximum on the screen. Submit Answer Incorrect. Tries 1/12 Previous Tries Calculate the width of the slits. Use the cm scale to measure distances on the screen. Submit Answer Tries 0/12

A double-slit experiment has a slit separation distance of 0.08 mm.  If the bright interference fringes are to be spaced 5 mm apart on the screen when the slits are illuminated with a laser of wavelength 633 nm, what should be the distance to the screen from the slits? a) 0.42 m b) 0.63 m c) 0.77 m d) 0.81 m e) 0.92 m

A student performs a double-slit experiment using two slits spaced 0.25 mm apart and located 3.0 m from ascreen. Infrared light with a wavelength of 1200 nm is used and film sensitive to infrared light is used as thescreen. What is the average distance between adjacent dark bands on the exposed film?

Blue (460 nm) light is shone through double slits spaced 4.8 x 10-6 m apart to form a diffraction pattern on a screen placed 25 cm away. Calculate the distance between the m = 2 bright spot and the center of the diffraction pattern.(Give your answer in meters but don't include the units.)

Why do you get bright and dark lines in an interference pattern? What needs to be true about the difference in path length for two diffracted beams of light to get a bright line in the interference pattern? What about a dark line?

Part (a) What is the ratio of the slit width to the wavelength of the incident light? Part (b) What is the wavelength of the incident light, in nanometers?

In a one slit diffraction experiment using a red laser the distance from the central bright spot to the first diffraction minimum is measured to be 2.0 cm. If you replace the original mask with a new one with a wider slit, how does the distance from the central bright spot to the first diffraction minimum change? a) distance gets smaller b) distance gets larger c) distance stays the same d) not enough information to tell