9th Class Science Matter in Our Surroundings Question Bank Matter in our Surroundings

  • question_answer
    Calculate the temperature at which both the Celsius and Fahrenheit scales show the same reading?

    A) \[40\,\,K\]          

    B)        \[{{100}^{o}}F\]

    C) \[-{{40}^{o}}C\]           

    D)        \[-{{100}^{o}}C\]

    Correct Answer: C

    Solution :

    \[C=F\] \[\frac{C}{100}=\frac{F-32}{180}\] \[180\,\,C=100\,\,C-3200\] \[80\,\,C=-3200,\,\,C=-{{40}^{o}}C\]or\[-{{40}^{o}}F\]


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