Calculate the thickness of a quarter-wave plate for the light of wavelength 400 nm for which μ0=1.5632 and μe=1.5541.
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- A certain device for analyzing electromagnetic radiation is based on the Bragg scattering of the radiation from a crystal. For radiation of wavelength 0.149 nm, the first-order Bragg peak appears centered at an angle of 15.15°. The aperture of the analyzer passes radiation in the angular range of 0.015°. What is the corresponding range of wavelengths passing through the analyzer?A11What is the frequency of an X-ray photon with energy 9.0 keV (9000 eV)?
- A laser with 589 nm wavelength and a beam diameter of 2 mm is fed through a beam-expander, then aimed from the building A to the Building B at a distance of 2.75 km. What expansion factor is required for the beam-expander in order that the diffraction-limited spot at Canary Wharf tower has a diameter of 30 cm (defined as the diameter of the first dark ring) ?X rays with a wavelength of 0.15 nm undergo first- order diffraction from a crystal at a 64° angle of incidence. ▾ Part A What is the angle of second-order diffraction? Express your answer using two significant figures. 02 = ΜΕ ΑΣΦ Submit Request Answer ?Tungsten is a very high density, high melting point, and hard metal. These properties are partially due to its body centered cubic (BCC) crystal structure. Tungsten has an atomic number of 74 and an average mass of 183.8u. (1u = 1.661x10-27 kg). X-ray diffraction experiments determine that the Bravais lattice has a characteristic length of 3.155 Å (This means each side of the cube shown below has a length of 0.3155 nm.) How many complete tungsten atoms are there in each BCC unit cell?
- In the figure below, sources A and B emit long-range radio waves of wavelength 1 = 450 m, with the phase of the emission from A ahead of that from source B by 90°. The distance ra from A to detector D is greater than the corresponding distance rg by 60 m. What is the phase difference at D? 0.17 TB1. A helium-neon laser, radiating at 632.8 nm, has a power output of 3.0 mW. The beam diverges at angle 0.17 mrad as in fig 1. (a) What is the intensity of the beam 40m from the laser? (b) What is the power of a point source providing that intensity at that distance? Laser Figure 1: Helium neon laserFind the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-1⁹ J. (a) a photon having a frequency of 4.20 x 10¹7 Hz ev (b) a photon having a wavelength of 4.60 x 10² nm eV
- How much energy is carried by light with a wavelength of λ = 509 nm? Express your answer in eV (electron-volts).PROBLEM For a given x-ray diffraction test (n = 1) on a cubic crystal structure, the recorded diffraction peaks (20) were 24.09°, 34.33°, 42.37°, 49.33°, 55.62°, and 61.48°. The x-ray wavelength used in the test was 0.15418 nm. For this test, determine the crystal structure of the element, the lattice constant, and identify the element.In the process of performing an analysis, you determine that you need to improve the precision by limiting the error in the absorbance to 9.400 x 10%. You attempt to achieve this by reducing the amount of stray light that reaches the detector. What is the maximum amount of stray light that can reach the detector that will limit the error in the absorbance to 9.400 x 10 for a true absorbance of 1.0000000? s= 222 x10-5 Incorrect