phys'ical op'tics

the branch of optics concerned with the wave properties of light, the superposition of waves, the deviation of light from its rectilinear propagation in a manner other than that considered by geometrical optics, the interaction of light with matter, and the quantum, corpuscular aspects of light. Cf. diffraction, interference, quantum optics.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

physical meteorologyphysical pendulum

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