5.3. A material of simple tetragonal Bravais lattice (a = 2.4 Å, c = 3.6Å) is prepared in a plate shape so that the sample surface is parallelto (001). When the sample was symmetrically scanned in the 20range from 20° to 100° using an X-ray beam at 1.54 Å, at which20 positions will the diffraction peaks be observed? How will thediffraction pattern change if the sample is replaced by a crystal ofbody-centered tetragonal lattice? Assume that all the other condi-tions are the same.

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

Answered: 5.3. A material of simple tetragonal…

Similar questions

An electric current through hydrogen gas produces several spectral lines from the transitions to n = 2, called the Balmer series. The four most visible ones are at 410.2 nm, 434.0 nm, 486.1 nm, and 656.3 nm. Assume you are observing these lines with a diffraction grating of 5870 lines per centimeter. a) What is the angle (in degrees) of the second-order maximum for the 410.2 nm line? b) What is the angle (in degress) of the second-order maximum for the 434.0 nm line? c) What is the angle (in degrees) of the second-order maximum for the 486.1 nm line? d) What is the angle (in degrees) of the second-order maximum for the 656.3 nm line?
B4. A bone sample has a density p = 1.2x10³ kg/m³, a molar mass m = 217 g/mol and an interaction cross section per atom o = 6.0x10-22 cm². Determine the linear attenuation coefficient µ (in cm-¹) and the half value layer (in cm). Assume there is no scattering when the radiation interacts with the bone sample. Express the values to 3 significant figures, if necessary.
1.2) In a region of gas where the optical depth is 2.0, what percentage of photons can escape without being scattered or absorbed?
P11G.1 The fluorescence spectrum of anthracene vapour shows a series of peaks of increasing intensity with individual maxima at 440 nm, 410 nm, 390 nm, and 370 nm followed by a sharp cut-off at shorter wavelengths. The absorption spectrum rises sharply from zero to a maximum at 360 nm with a trail of peaks of lessening intensity at 345 nm, 330 nm, and 305 nm. Account for these observations.
When we illuminate lead with ultraviolet light with a wavelength of 250 nm, suppose we find the maximum potential difference developed between the plates in the experimental setup shown in the figure to be 0.82 volts. From these data and the accepted value of hc, find the potential difference between the plates if the wavelength is 215 nm. Also find W for lead.
Match the following spectra with the corresponding astronomical object.