resonance of waves

. The amplitude of the board then becomes very large and the periodic force is said to have set the board in resonance. If the prongs of a vibrating tuning fork are held on the top of a pipe, the air inside it is set into vibration by the periodic force exerted on it, by the prongs. In ge..

Magnetic Resonance Imaging - It is also called Nuclear Magnetic Resonance (NMR) spectroscopy as it is based on this phenomenon. It is a diagnostic technique that provides high quality cross-sectioned two or three - dimensional images of organs without having X-rays or other radi..

In this, the patient lies down surrounded by massive electromagnets and is exposed to short bursts of powerful magnetic field and waves. These bursts stimulate the protons (hydrogen nuclei) of the patients tissues to emit radio signals which are picked up and converted into digital signa..

>Most stimulated emission photons initially produced in the discharge tube will not happen to be parallel to the tube axis. These will be quickly stopped at the walls. Stimulated emission photons that are parallel to the axis, can move back and forth through the discharge tube many times by success..

When a light wave falls on a transparent solid, it causes the electrons in the solid to oscillate periodically in response to of the incident waves. Since these oscillating charges act coherently or cooperatively there is a lack of scattering of light. But in liquids or gases, d..

1) Non-invasive diagnostic techniques are those that can be applied without penetrating the skin. 2) X-rays have a remarkable ability to penetrate matter. They help to provide detailed images of dense parts of the body like bones. 3) The photographic image produced by x-radiation is called Radiogra..