1. An X-ray beam of wavelength 0.71 A is diffracted by a cubic KCL crystal of density 1.99x10^3 Kgm-3. Calculate the interplanner spacing for (200) planes and glancing angle for the second order reflection from these planes. The molecular weight of KCL is 74.6 amu and the Avagadro’s numberis 6.023x10^26 Kg-1 mole-1.

Q: Calculate the wavelength corresponding to an electron with the energy of 104 eV (kiloelectronvolt).…

A: Given that     Energy ( in eV  ) = 104 eV .    In joule : 104eV = 104×1.6 × 10^-¹⁹J . So we know…

Q: 6.7. A thin film of BCC structure (a = 4.28 Å) deposited on a Si substrate (a = 5.43 Å) revealed…

A:

Q: X-rays with wavelengths of 128 pm was used to study a crystal which produced a reflection of 15.8…

A: Given data: Wavelength λ=128 pm Angle θ=15.8o Order n = 1

Q: Diffracted rays Incident rays 1 2 1 2 d Figure 1: Problem 2.

A:

Q: 5.3. A material of simple tetragonal Bravais lattice (a = 2.4 Å‚ c = 3.6 Å) is prepared in a plate…

A: Given that,a=2.4A0 and c=3.6A0Interplaner spacing of tetragonal bravais lattice are…

Q: X rays from a copper X- ray tube (A =204 pm) were diffracted at an angle of 35 degrees by a crystal…

A: Solution: Write the Bragg equation. nλ=2dsin2θ Here, n is the order of diffraction, d is the…

Q: Reflections from the {110} planes of barium titanate, BaTiO3, which has a tetragonal crystalline…

A: Given:

Q: 8.2. A powder diffraction pattern was obtained from a crystal of BCC lattice (a = 3.154 Å), which…

A:

Q: simple cubic crystal is cut so that the rows of atoms on its surface are separated by a distance of…

A:

Q: A crystal sample of bacteriorhodpsin, a light-sensitive protein found in halobacteria that responds…

A: The expression for the Bragg diffraction for the maximum is as follows: 2dsinθ=nλ…

Q: The first-order diffraction maximum is observed at 14.2° for a crystal having an interplanar spacing…

A: The first-order diffraction maximum is observed at 14.2° for a crystal having an interplanar spacing…

Q: = 5. Consider a dielectric mirror that is made up of quarter wave layers of GaAs with n and AlAs…

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Q: (material science question) The unit cell dimension of fcc copper is 0.36 nm. Calculate the longest…

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Q: Nickel has a unit cell corresponding to fcc lattice with a lattice parameter of 0.352 nm. XRD of…

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Q: diffracted x-ray beam is observed from the (220) planes of cobalt at a 2? angle of 99.2° when x-rays…

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Q: The intensity of a laser in free space is150mW / m². The corresponding amplitude of the V electric…

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de Broglie Equation

The sketch of matter waves is drawn below: