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NEET Physics Mathematical Tools, Units & Dimensions Question Bank Errors of Measurement

  • question_answer
    The percentage errors in the measurement of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimation of the kinetic energy obtained by measuring mass and speed 

    A)          11%

    B)                                        8%         

    C)          5%

    D)          1%

    Correct Answer: B

    Solution :

                 \\[E=\frac{1}{2}m{{v}^{2}}\]            \% Error in K.E.            = % error in mass + 2 × % error in velocity            = 2 + 2 × 3 = 8 %


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