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[" 19.If a body cools down from "80C" to...

[" 19.If a body cools down from "80C" to "60C" in "10" min where "],[" temperature of the surrounding is "30C" .Then,the "],[" temperature of the body after next "10min" will be "],[[" (a) "500," (b) "48c],[" (c) "30C," (d) None of these "]]

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