Two small identical earthen pots A and B are taken. Paint is smeared thoroughly on

pot A. Equal quantity of water is filled in both pots till the brim. In which pot the

water will be cold? Why?

1 Answer

Answer :

In pot B water will be colder than that of pot A. In pot A, paint is smeared. The pores are

closed. So water drops cannot evaporate through the walls. In pot B which is unpainted

water evaporates and has cooling effect on the water inside.

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