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Aditi agrawal Asked a Question
June 15, 2020 12:41 pmpts 30 pts
disappears in 50 years, how much will remain after 100 years ? Ans. 90.25Y% 2. Ifa thermometer is taken outdoors where the temperature is 0°C from a room in which the temperature is 21°C and the reading drops to 10°C is I minute, how long after its removal will the reading be 5°C? Ans. 2 minutes, 13 seconds.
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  • Chandra dhawan
    see this example also
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    Aditi agrawal
    sir i am not getting it please solve it once
  • Mahak Best Answer
    t=116 seconds
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    Aditi agrawal
    but the answer is 2 minutes 13 seconds
  • Chandra dhawan thankyou
    dear it's not acutual question but I hope it will help you see it
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  • Dhairya sharma
    concept
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    Dhairya sharma
    this is the concept
  • Dhairya sharma thankyou
    m attaching a method only
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    Aditi agrawal
    i am not getting how to use it for the question . please solve it
  • Dhairya sharma
    see my next comment
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  • Dhairya sharma
    u can use it
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    Aditi agrawal
    please explain the abbreviations