A laser beam of wavelength 710 nmnm shines through a diffraction grating that has 750 lines/mm/mm and observed on a screen 1.4 mm behind the grating. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution.     Part A Part complete  How many bright fringes can be observed on a screen? Express your answer as an integer. Number of bright fringes = 3   SubmitPrevious Answers  Correct Part B What is the distance between m� = 0 and m� = 1 bright fringes?

Question B1 The material rubidium antimony selenide, Rb3SbSe3, is known to have a cubic crystal structure. A diffraction experiment using Cu Ka radiation of wavelength X = 1.5406 Å showed peaks at 2012.319, 15.103°, 17.456°, 19.536°, 21.421°, and 24.784°. a) Index each of these peaks (that is, calculate possible h, k, and I values for each of them). Show that these data are consistent with a cubic unit cell, and calculate its unit cell parameter a. Which cubic Bravais lattice (i.e., simple cubic, body-centred cubic, or face-centred cubic) is most appropriate? On the other hand, the related compound rubidium manganese selenide, RbMnSe2, has a body-centred tetragonal structure with unit cell parameters a = 4.266 Å and c = 14.033 Å. Its motif consists of a Rb atom at (0, 0, 0), a Mn atom at (½, 0, 1), and Se atoms at (½, 1, 0.15) and (,,-0.15). b) Draw the unit cell of this structure in projection down the b axis, with the a axis vertical and the c axis horizontal. Draw the Mn atoms as…

1. O -12 points SerPSE9 38.P.001.MI.FB. My Notes O Ask Your Teacher Light of wavelength 588.0 nm illuminates a slit of width 0.80 mm. (a) At what distance from the slit should a screen be placed if the first minimum in the diffraction pattern is to be 0.89 mm from the central maximum? m (b) Calculate the width of the central maximum. mm Need Help? Read It Master It 2. O -11 points SerPSE9 38.P.005. My Notes + Ask Your Teacher Coherent microwaves of wavelength 5.00 cm enter a tall, narrow window in a building otherwise essentially opaque to the microwaves. If the window is 45.0 cm wide, what is the distance from the central maximum to the first-order minimum along a wall 6.50 m from the window? cm Need Help? Read It 3. -/1 points SerPSE9 38.P.007.MI.FB. My Notes Ask Your Teacher A screen is placed 60.0 cm from a single slit, which is illuminated with light of wavelength 690 nm. If the distance between the first and third minima in the diffraction pattern is 3.10 mm, what is the width of…

A red laser (λ = 692 nm) is incident on a diffraction grating that has n = 1500 lines per cm. Randomized Variablesλ = 692 nm n = 1500 lines/cm Part a) What is the angle, in radians, that the first order maximum makes, θ1?  part b)  What is the angle of the fourth order maximum, θ4, in radians?

Question A4 The mineral schreibersite is often found in iron-nickel meteorites. One sample was found to have a body-centred tetragonal structure with a = 9.0168 Å and c = 4.4491 Å. Calculate the scattering angle and the multiplicity for the first (lowest 0) diffraction peak, using Cu Ka radiation of wavelength X = 1.5406 Å.

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In a Young's double-slit experiment, 550-nm-wavelength light is sent through the slits. The intensity at an angle of 2.00⁰ from the central bright fringe is 84% of the maximum intensity on the screen. What is the spacing between the slits? 1.18e-6 x Your response differs from the correct answer by more than 10%. Double check your calculations. m

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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 physician wants to shine a therapeutic Nd YAG laser through a small slit onto a patient who is 37 cm behind the slit. What maximum size slit could she use so that there would be no intensity minima in the light that falls on the patient? The infrared wavelength of the YAG laser is 1064 nm.  PLEASE PLEASE draw the diagram/situation and define variables  THank you!!