what is a shadow? what things are necessary for the formation of a shadow?
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An area of darkness formed by an opaque object obstructing light is called a shadow. The following three things are required for a shadow to form: a source of light, an opaque object, a screen.
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An area of darkness formed by an opaque object obstructing light is called a shadow. The following three things are required for a shadow to form: a source of light,An opaque object, a screen.
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