If we throw a any colour light on an opaque object, then ____ would be the colour of the shadow.

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Detailed Solution

If we throw a any colour light on an opaque object, it will cast a black shadow.
It doesn't matter if it is a purple light or any other colour of light; the colour of the shadow will always be black because opaque objects completely block the light. The definition of an opaque object is one that does not permit light to pass through it. Objects that are translucent only permit a small amount of light to pass through them. Transparent objects are those that don't cast shadows but allow light to pass through them.

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