Drinking of hot tea from a saucer preferred to a cup, due to:
A
Surface area
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B
Material of the saucer
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C
Thermal conductivity
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D
Colour
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Solution
The correct option is A Surface area The surface area of the tea poured in a saucer is more than that in the cup. The more the surface area, the more is the rate of evaporation that causes cooling effect. Therefore, the tea present in the saucer becomes cool faster than in a cup.