| 21. | Most charts in an ophthalmologist s or optometrist's office will show images of varying contrast and angular frequency.
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| 22. | The index k of the frequency response corresponds to an angular frequency \ omega of 2 \ pi k / N.
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| 23. | A small radial deviation from a circular orbit of radius " r " outer will oscillate stably with an angular frequency
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| 24. | Mihalas & Weibel-Mihalas work with radiance and frequency; also Goody & Yung; Loudon uses angular frequency and radiance.
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| 25. | Here \ omega _ 0 a constant angular frequency, chosen in accordance with the characteristics of the wave field under study.
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| 26. | In the equation, " i " is the imaginary unit, and ? is the angular frequency of the wave.
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| 27. | The second equation for " ? k " is known as the dispersion relation between the angular frequency and the wavenumber.
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| 28. | The angular frequency \ omega and wavenumber k of the wave was related to the energy E and momentum p of the particle by
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| 29. | Thus, the second-order polarization at angular frequency \ omega _ 3 = \ omega _ 1 + \ omega _ 2 is
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| 30. | Versus \ omega, where \ omega and \ omega _ \ mathrm { c } are the input and cutoff angular frequencies respectively.
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