what is the meaning of ray

A line segment which can be extended in only one direction is called a ray..

A ray can be extended in one direction only. Its other end is a fixed point. ..

A line segment which can be extended in only one direction is called a..

Travel in straight linesThey cast a shadow of the objects placed in their way. Produce mechanical effectA paddle wheel placed in their path starts rotating. Rays are positively chargedWhen an electric field is applied in the path of anode rays, they are deflected towards..

The ray of light which travels into the second medium, when the incident ray strikes the surface of separation between the mediums 1 and 2, is called the refracted ray..

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When the pressure in the discharge tube is less than 10 -4 mm of Hg, the discharge tube starts showing fluorescence. When this fluorescence was investigated, it was found that the fluorescence consisted of beams of negatively charged electrons. These electrons emanate normally from the catho..

found in between the vascular bundles. They are meant for the storage of foo..

Mean is the arithmetic avera..

Pollution can be anything - which damages the ecosystem and destroys the delicate balance in the ecosystem. Thereby, it creates health hazards to human beings and animals besides damaging the ecosystem. For e.g., industries polluting air has set imbalance in composition of air and made it unworthy ..