Rooms are fitted with ventilators to let the hot air out. The phenomenon involved here is .

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Solution

Warmer air in the room being lighter rises up and escapes through the ventilator. The empty space is then filled up by fresh or cold air coming from the windows/doors. Since transfer of heat is taking place through actual movement of air, the phenomenon of convection is involved here.

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Similar questions

Rooms are fitted with ventilators to let hot air out. Choose the correct phenomenon.

rooms are fitted with ventilators to let the air move around. the phenomenon involved in this process is
A conduction
B convection

C radiation
D diffusion

The hot air in the rooms rises up and flows out of ventilators. The fresh and cold air from outside flows into room from doors and windows.

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