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NEET Sample Paper NEET Sample Test Paper-5

  • question_answer
    We have error in the measurments of length, radius mass and current of a wire are 2%, 3% and 1% then error on its density will be:

    A)  \[11%\]                      

    B)  \[8%\]

    C)  \[10%\]                      

    D)  \[7%\]

    Correct Answer: C

    Solution :

    As error in the density \[\frac{\Delta d}{d}\times 100=\frac{2\Delta T}{r}\times 100+\frac{\Delta l}{l}\times 100+\frac{\Delta m}{m}\times 100\]\[=2\times 3+2+2=10%\]


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