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A hot body at 70^@C cools to 25^@ C in ...

A hot body at `70^@C` cools to `25^@` C in 15 min . Find its temperature after the next 10 mins. The temperature of the surroundings is `10^@C` .

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Knowledge Check

  • A body cools in 7 min from 60^@C to 40^@C What will be its temperature after the next 7 min? The temperature of surroundings is 10^@C .

    A
    `28^@C`
    B
    `25^@C`
    C
    `30^@C`
    D
    `22^@C`

  • Water at 60^(@) C cools to 50^(@) C in the first 10 min and to 42^(@)C in the next 10 min. The temperature of the surrounding is

    A
    `10^(@) C `
    B
    `15^(@)`C
    C
    `20^(@)` C
    D
    `25^(@)` C

  • Water at 60^(@)C cools to 50^(@)C in the first 10 min and to 42^(@)C in the next 10 min. the temperature of the surrounding is

    A
    `10^(@)C`
    B
    `15^(@)C`
    C
    `20^(@)C`
    D
    `25^(@)C`

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