Question

what is Shadow???????? ​

Answer 1

Question:-

what is Shadow?

AnsWeR:-

A shadow is a dark area on a bright surface. It is caused by something blocking a source of light. A point source of light casts only a simple shadow, called an "umbra". A "penumbra" is the region in which only a portion of the light source may be blocked.

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An example of shadow is when you see your silhouette on the ground when you go outside on a sunny day. An example of shadow is a dark or shaded area on a photograph.

Answer 2

Answer:

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A shadow is a dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light.