phase constant physics definition
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Explain how to find phase constant? Answers. Best Answer: The phase constant is a measure of how the waveform gets shifted, left or right, along the axis. If you have a basic sine wave, sin(t), you can adjust the amplitude, A sin(t), the frequency, sin(wt), and the phase, or at what point along the curve the signal starts: sin(t + phi). The easiest way to think about phase is to look at t = 0, and see how the waveform starts.
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Phase Diagrams Triple point – the point on a phase diagram at which the three states of matter: gas, liquid, and solid coexist Critical point – the point on a phase diagram at which the substance is indistinguishable between liquid and gaseous states
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Phase margin In electronic amplifiers, the phase margin (PM) is the difference between the phase and 180°, for an amplifier's output signal (relative to its input), at a certain frequency.
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- Equilibrium constant. The equilibrium constant of a chemical reaction is the value of the reaction quotient when the reaction has reached equilibrium. An equilibrium constant value is independent of the analytical concentrations of the reactant and product species in a mixture, but depends on temperature and on ionic strength. Known equilibrium constant values can be used to determine the composition of a system at equilibrium.
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Phase Definition (Matter) Phase Definition. In chemistry and physics, a phase is a physically distinctive form of matter, such as a solid, liquid, gas or plasma. A phase of matter is characterized by having relatively uniform chemical and physical properties. Phases are different from states of matter.
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phase Lagging phase refers to a wave that occurs behind another wave of the same frequency. When two signals differ in phase by -90 or +90 degrees, they are said to be in phase quadrature . When two waves differ in phase by 180 degrees (-180 is technically the same as +180), the waves are said to be in phase opposition .
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Phase Shift Definition of Phase Shift. With regard to wave motion, a phase shift represents the amount a wave has shifted horizontally from the original wave. Phase shifts are typically measured in degrees where a complete cycle is 360 degrees. In the diagram below, the second wave is shifted by the specified amount from the original wave: Because the horizontal axis denotes time, a phase shift represents a shift in time from the original wave.
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Phase Phase. When capacitors or inductors are involved in an AC circuit, the current and voltage do not peak at the same time. The fraction of a period difference between the peaks expressed in degrees is said to be the phase difference. The phase difference is ELI the ICE man helps to remember the sign of the phase. The phase relation is often depicted graphically in a phasor diagram.
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coherence (kō-hîr'əns, -hěr'-) A property holding for two or more waves or fields when each individual wave or field is in phase with every other one. Lasers, for example, emit almost perfectly coherent light; all the photons emitted by a laser have the same frequency and are in phase.
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phase 4 (Physics) a particular stage in a periodic process or phenomenon. 5 ♦ in phase (of two waveforms) reaching corresponding phases at the same time. 6 ♦ out of phase (of two waveforms) not in phase. 7 (Chem) a distinct state of matter characterized by homogeneous composition and properties and the possession of a clearly defined boundary.
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Phase (waves) The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time t = 0. Phase is a frequency domain or Fourier transform domain concept, and as such, can be readily understood in terms of simple harmonic motion.
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Define period, amplitude and phase shift, Mathematics Q. Define Period, Amplitude and Phase Shift? Ans. Period, amplitude and phase shift are used when describing a sinusoidal curve The period of a function is the smallest number p for which f(x + p) = f(x) for each x for which is defined. The function sin(x) repeats every degrees, sin (x +) = sin(x).t is also clear by the graph that 2p is the smallest number for which this is true. The period of sin(x) is 2π. The amplitude of a sinusoidal wave is the distance from the central axis (the x-axis in this case) and the maximum or minimum value of the wave.
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Phase Diagram NASA. Definition: For a given substance, it is possible to make a phase diagram which outlines the changes in phase (see image to the right). Generally temperature is along the horizontal axis and pressure is along the vertical axis, although three-dimensional phase diagrams can also account for a volume axis.
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Phase Changes and Refrigeration: Thermochemistry of Heat Engines Matter can exist in three different phases (physical states): solid, liquid, and gas. A phase is a form of matter that is uniform throughout in chemical composition and physical properties, and that can be distinguished from other phases with which it may be in contact by these definite properties and composition.atter can exist in three different phases (physical states): solid, liquid, and gas. A phase is a form of matter that is uniform throughout in chemical composition and physical properties, and that can be distinguished from other phases with which it may be in contact by these definite properties and composition.
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What is phase in waves? The term phase is meaningful for waves that repeat themselves over time. The period of one cycle of a wave is divided to [math]360^0 [/math]or [math]2\pi[/math] radians. A very common type of wave is known as a cosine wave. Such wave can be def...
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- A phase is defined as any homogeneous and physically distinct part of a system which is. separated from other parts of the system by interfaces. A part of a system is homogeneous if it has identical physical properties and chemical. composition throughout the part. • A phase may be gas, liquid or solid.
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- Temperature is constant, because during a phase change substance absorbs heat energy and converts it to potential energy.emperature can be used to recognize a phase change because during  the phase change the temperature of the substance does not change. Edit. Share to: 1  A Basic Phase Change Definition Scientists often are very interested in the chemical makeup of matter, but they are also interested in the physical makeup of substances.
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Electronvolt In particle physics, a system of natural units in which the speed of light in vacuum c and the reduced Planck constant ħ are dimensionless and equal to unity is widely used: c = ħ = 1.
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What does phase mean in chemistry? Arsh Dixit, Chemistry runs in my blood ... Phase Definition: a physically distinctive form of matter, such as a solid, liquid, gas or plasma.A phase of matter is characterized by having relatively uniform chemical and physical properties. Phases are different from states of matter. The states of matter (e.g., liquid, solid,gas) are phases, but matter can exist in different phases yet the same state of matter. For example, mixtures can exist in multiple phases, such as an oil phase and an aqueous phase.
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Phase Diagrams: Critical Point, Triple Point and Phase Equilibrium Boundaries Triple Point. The three phase equilibrium lines meet at one point. This triple point is the point where the temperature and pressure conditions are right for all three states (solid, liquid and gas) to exist together at equilibrium. The triple point is like the peak of a pyramid. If you are standing on the top of the pyramid, no matter which direction you step, you are stepping onto a different side. No matter where you move from a triple point, you are entering a different phase.
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Planck constant The Planck constant has dimensions of physical action; i.e., energy multiplied by time, or momentum multiplied by distance, or angular momentum. In SI units, the Planck constant is expressed in joule seconds (J⋅s) or (N⋅m⋅s) or (kg⋅m2⋅s−1). The value of the Planck constant is:
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- Because phase changes generally occur at constant pressure (i.e., in a reaction vessel open to the atmosphere), the heat can be described by a change in enthalpy (ΔH=q p =nC p ΔT, where n is the number of moles of the substance and C p is the molar heat capacity at constant pressure).
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- It is therefore called the triple point of the substance, and it represents the only point in the phase diagram in which all three states are in equilibrium. Point C is the critical point of the substance, which is the highest temperature and pressure at which a gas and a liquid can coexist at equilibrium.
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Planck constant The Planck constant is related to the quantization of light and matter. It can be seen as a subatomic-scale constant. In a unit system adapted to subatomic scales, the electronvolt is the appropriate unit of energy and the petahertz the appropriate unit of frequency.
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phase In electronic signaling, phase is a definition of the position of a point in time (instant) on a waveform cycle. A complete cycle is defined as 360 degrees of phase as shown in Illustration A below. Phase can also be an expression of relative displacement between or among waves having the same frequency .
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- eI am seeking what is the physical meaning of Planck's constant. I began this investigation since it didn't appear to be a unit of length measurement or of time. I have come to the following startling conclusion: Planck's constant is the amount of energy contained in any single cycle of an electromagnetic wave, regardless of the wavelength.