Ray means each of the lines in which light and heat seem to stream from the sun or a body which is luminous, or pass through an opening which is often small.
its a line with a point at one end of it.
A ray is a line that has an originating point, but no end.
Yes it is
You just defined a ray. ■
A ray is defined as having an origin but no endpoint (unless you count the origin as an endpoint, in which case it has 1).
Strictly speaking, a "ray" is in the family of lines and line segments. A line is defined as a one-dimensional object of infinite length with no well-defined endpoints (since "infinity" isn't a well-defined value). It's the 1-D analogue to a plane or a space. A line segment is the finite equivalent of a line. A ray is a bit stranger: it's infinite in length, but has one well-defined end-point, where the ray originates. They show up a lot in classical optics because if nothing interrupts it, a light ray is created at some point and then continues forever.
A ray of sunlight is defined as 'a narrow beam of light' and is used to describe a small line or individualÊstream of sunlight.ÊA ray of sunlight is usually seen as multiple rays of sunlight not just one.Ê
parallel ~ Actually, all lines are straight and endless. A ray has one endpoint, is straight, and the other end of the ray is endless. A segment has a defined beginning and end, and is straight.
A ray line is longer, since it has an end point and then extends forever in the other direction its length is infinite, whereas a segment has a definite length defined by two endpoints.
chest x-ray shows a questionable right basilar opacity
chest x-ray shows a questionable right basilar opacity
Fibronodular densities are areas on an x-ray that are sharply defined but look roughly circular. They can be an indication of the person previously having a granulomatous disease.
A mathematical technique which involves tracing theoretical rays of light within a mathematically defined world. Render-Boy uses this technique to render images.