A student performs a double-slit interference experiment. The student records the fact that a third-order dark fringe is located at an angle of 20.11ofor a given light source. The wavelength of light is then decreased by 40.0nm, and the student records the fact that the second-order dark fringe is now located at an angle of 11.17o. What is the slit distance?

Laser light of wavelength 627.0 nm passes through a double-slit arrangement at the front of a lecture room, reflects off a mirror 29.2 m away at the back of the room, and then produces an interference pattern on a screen at the front of the room. The distance between adjacent bright fringes is 9.52 cm. What is the slit separation in meters? Number i 0.000192 Units m

Question 10

The figure below shows a radio wave transmitter and a receiver separated by a distance d = 50distance d = 50, 0 m, both being at a height h = 35, 0 m above the ground. The receiver canThe receiver can receive signals either directly or indirectly from reflected signals on the ground. Suppose that theground is leveled and a 180o phase shift occurs in the reflection.Determine the longest wavelengths that interferea. constructively;b. destructively.

In a single-slit diffraction pattern, the central fringe is 480 times as wide as the slit. The screen is 16,000 times farther from the slit than the slit is wide. What is the ratio X/W, where is the wavelength of the light shining through the slit and W is the width of the slit? Assume that the angle that locates a dark fringe on the screen is small, so that sin is approximately equal to tan (). Number Units

A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 556 nm. Determine the angle that locates the first dark fringe when the width of the slit is (a) 2.3 × 10-4 m and (b) 2.3 × 10-6 m.

Light is sent through a single slit of width w = 0.52 mm. On a screen, which is L = 1.9 m from the slit, the width of the central maximum is D = 5.2 mm. a) The angle of the first dark fringe theta dark. Express sin(theta dark) in terms of the wavelength of the light λ and w. sin(theta dark) =  b) Express tan(theta dark) in terms of D and L. c) If D << L, how is tan(theta dark) related to sin(theta dark)? d) Express λ in terms of w, D, and L? e) Solve for the numerical value of λ, in nanometers.