To let hot air out of their houses, Simran installed an exhaust fan near a window, while Aman installed it on the wall near the ceiling. Which exhaust fan will let out hot air mere effectively?
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Answer:
The exhaust near the celling.
Explanation:
This is because hot air is comparitvely lighter than cool air as hot air is lighter it would be present in the upper part of the room and cool air at bottom portion. Hence Arman would have advantage.
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