| Question 1: Scattering of light or other ________ is the deflection of rays in random directions by irregularities in the propagation medium, or in a surface or interface between two media. | |||
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| Question 2: Light propagating through an optical system can be ________ by absorption, reflection and scattering. | |||
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| Question 3: These predictions were confirmed by experiments on commercial glasses and glass ________, where mean free paths were apparently limited by "internal boundary scattering" to length scales of 10 - 100 micrometers. | |||
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| Question 4: In this interpretation, modulated phonons "relax" towards local thermal equilibrium via an________ phonon-phonon collisions. | |||
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| Question 5: The light wave is considered to be scattered by the density maximum or amplitude of the acoustic phonon, in the same manner that ________ are scattered by the crystal planes in a solid. | |||
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| Question 6: In monatomic systems, we call these waves: ________ fluctuations. | |||
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| Question 7: Klemens subsequently emphasized that heat transport in ________ solids occurs through elastic vibrations of the lattice, and that this transport is limited by elastic scattering of acoustic phonons by lattice defects (e.g. | |||
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| Question 8: The interaction consists of an ________ scattering process in which a phonon is either created or annihilated. | |||
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| Question 9: The velocities of longitudinal acoustic phonons in condensed matter are directly responsible for the thermal conductivity which levels out temperature differentials between ________ and expanded volume elements. | |||
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| Question 10: The transmission of various frequencies of light is essential for applications ranging from window glass to fiber optic transmission cables and ________ (IR) heat-seeking missile detection systems. | |||
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