explain why fire has no shadow ???
Answers
Answer:
A shadow is basically the absence of light. Fire doesn't have a shadow cause fire is itself a source of light, so the wall or obstacle you'd be expecting it's shadow to fall on, would instead be covered by the light from the fire. Hence, fire has no shadow.
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Fire can have a shadow. It depends on your set up.
If outside source of light is weak, fire won't cast a shadow because being a source of light itself, it overpowers the outside source of light. In this case, although, you might observe a weak shadow which is only due to the carbon soot.
The carbon soot particles reflect/redirect light. Hence, a weak shadow is observed which generally appears at a fine gap from the shadow of the burning object/candle/matchstick on the wall.
But when the outside source of light is strong like that of sunlight, the flame casts a shadow on the wall or the floor behind it.