A vertical plate and a horizontal plate are suspended in an
open room. Both are heated to the same temperature. Which one
will cool first?
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Answer Posted / sujit singh
here since cooling will take place by convection. if the temp of plate is higher than room temp .. heat will flow from plate to room.. thus causing it to cool. heat transfer by convection depends on surface area.. and here surface area exposed to room atmosphere is same in both case... so both will cool at same rate.there is natural convection as we are not using any device to cause the motion of air over plate. so no question of forced convection.
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