Question

silica has an fictive temperature of 1400 k with an isothermal compressibility of 7×10^-11 m^2 n ^-1 . the refractive index and the photoelastic coefficient for silica are 1.46 and 0.286 respectively. determine the theoretical attenuation in decibels per kilometer due to the fundamental rayleigh scattering in silica at optical wavelengths of 0.63,1.00, and 1.30 micrometers. boltzmann's constant is 1.381×10^-21 j k ^-1.​

Answer 1

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Answer:The houses in South India are made of bricks, wood, bamboo, stones and mud. They have sloping roofs as it rains heavily in these areas. Sloping roofs are seen as a solution to this problem, as the water does not collect anywhere on the roof, and flows down freely.