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?
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a
11%
b
8%
c
5%
d
1%
answer is B.
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Detailed Solution
∴E=12mv2∴ % Error in E = % Error in mass + 2× % error in velocity= 2+2×3 = 8%