What do we need in order to see a shadow?
Answers
Answer:
To cast a shadow you need an object that can block light rays. Not every object is able to do that. Some materials will let the light pass through whereas others will only block some of it. Objects able to block all the light are called opaque and will form a shadow.
Answer:
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What is the shadow?
A shadow is a dark (real image) 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.
=>>What do we need in order to see a shadow?
Opaque objects are those which do not let the light pass through them. Opaques objects can form a shadow in the presence of light. Opaque objects do not allow the light to pass through them. ... So, Opaque objects and a light source are the main requirements to see a shadoe.
What is a shadow how is it formed?
Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass through it. The light rays that go past the edges of the material make an outline for the shadow.
To cast a shadow you need an object that can block light rays. Not every object is able to do that. Some materials will let the light pass through whereas others will only block some of it. Objects able to block all the light are called opaque and will form a shadow.
What do you need to see a shadow ?
(1) There should be an opaque material.
(2) There should be a source of light and screen. The object must be placed in the path of light. Then shadow is formed on the screen.
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