How is a shadow formed?
Answers
Answer:
Shadow is formed when a light coming from the source is blocked by an opaque object. Typically shadow occupies all 3D space behind the opaque object which is obliterating light. And seen on the any surface behind that object either regularly or irregularly,depending on surface.
Explanation:
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Answer:
shadow is a dark area on a bright surface. It is caused by something blocking a source of light. A shadow's outline, called a silhouette, will have the same shape as the object blocking the light.
Explanation:
Depending on the light source, or sources, a wide range of effects can be produced. 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. If there is more than one light source, there will be several shadows, with the overlapping parts darker, and various combinations of brightness or even colors. The more diffuse the lighting is, the softer and more indistinct the shadow outlines become, until they disappear. The lighting of an overcast sky produces few visible shadows,
Astronomical shadows are usually sharp. This is because in space the light usually does not go through an atmosphere.