1.

Why shadow is always black ?​

Answer»

The Science department REACTS to this phenomenon as In one place, the object blocks the light COMING from the green BULB, leaving a blue shadow; in the other location it blocks the light from the blue bulb, leaving a green shadow. When you move the object close to the SCREEN, the shadows overlap, leaving a very DARK (black) shadow where the object blocks both lights.



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