how shadows are formed what is the essential condition for the formation of shadow
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The following three things are required for a shadow to form: a source of light. an opaque object. a screen or surface behind the object.
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Shadow is formed when an opaque object is kept in the path of ràys of light.
The essential conditions are,
a)there should be a opaque object.
b)there should be a source of light and screen.
c)The object must be placed in the path of light. Then a shadow will be formed...
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