Water waves on the surface of a lake C. Waves in a slinky spring D. Seismic P-waves 相关知识点: 试题来源: 解析 B。水面上的水波是横波的例子。选项 A,空气中的声波是纵波。选项 C,弹簧中的波可以是纵波也可以是横波,不一定。选项 D,地震中的 P 波是纵波。反馈 收藏 ...
Journal of Communications Technology & ElectronicsI. V. Andronov, D. Y. Zaika, and M. V. Perel, "An effect of excitation of a transverse magnetic creeping wave when a transverse electric wave crosses the line of the coincidence of propagation constants," Journal of Communications Technology ...
An example of such a finite-element simulation with an incident A-C wave and a generated A0 Lamb wave is shown in Fig. 10. The particle velocities for the A0 Lamb wave mode (in m/s) are both computed and measured and presented on the same plot in Fig. 11. In a further development...
An S wave is a type of wave that propagates and exists in all locations and at all times. It is characterized by its frequency, wavelength, and speed, and can be described by the equation c = vλ. S waves can interact with other waves, causing constructive or destructive interference, ...
The ZnO/fused silica structure is an example of a medium which sustains the propagation of multiple SAW modes since the transverse bulk wave velocity of the fused silica (3766 m/s) is larger than that of the ZnO (2806 m/s). The number of SAW modes and their velocities depend on the ...
The concept of quasiparticles is central to understand and predict the properties of condensed matter. For example, the quantization of collective atomic vibrations and spin precessions in long-range ordered solids1leads to the familiar concepts of phonons and magnons. When motion is harmonic, these...
A simple four-panel transducer capable of producing a beam with a screw dislocation along its axis was constructed and evaluated. A screw dislocation in a wavefront is characterized by a phase dependence about the dislocation axis that varies as exp(im), where m is an integer and is the ang...
It is easiest to describe the operation of the spaceplate by way of example—to this end, we consider the use of a spaceplate in a camera, as illustrated in Fig. 1b. The space between the lens and the sensor of a camera is dictated to a large degree by the focal length f of the...
First of all in free space, light behaves like a transverse wave which means that the variations of the electric vector E, are perpendicular to the propagation direction. In electromagnetic waves, the electric field E and magnetic field B are perpendicular to each other and to the propagation ...
For example, when the motion of the particles in the medium is perpendicular (transverse) to the direction of propagation of the wave at every point along the wave, the disturbance is said to be a transverse wave. The wave on the rope in Figure 19.2 is a transverse wave. The particles ...