An ice box used for keeping eatables cool has a total wall area of 1 metre 2 and a wall thickness of 5.0 cm. The thermal conductivity of the ice box is K= 0.01 J/m 
. It is filled with ice at 0 
along with eatables on a day when the temperature is 30 
. The latent heat of fusion of ice is 334×10 3 J/kg. The amount of ice melted in one day is (1 day = 86,400 seconds)
Text Solution
Verified by ExpertsThe correct answer is:
D
Quantity of heat transferred through wall will be utilized in melting of ice.
∴ ∴ Amount of ice melted 
∴ ∴ 
or 1552g
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