To expel hot air out of the kitchen, ‘A’ has an exhaust fan fitted on the window of her kitchen and ‘B’ has a similar exhaust fan fitted on the wall near the ceiling of her kitchen. Which of the exhaust fan will expel the hot air more effectively? Explain why?
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
Soln:
Exhaust fan of B will expel the hot air effectively as air rises up and her fan is at a greater height than A’s.
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