During measurement of kinetic energy T, the percentage error in measurement of mass of particle and momentum of particle are 3% and 2%, respectively. The percentage error in measurement of kinetic energy is
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a
2%
b
5%
c
3%
d
7%
answer is D.
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Detailed Solution
∴ T = p22m or ∆TT = 2∆pp+∆mmPercentage error in kinetic energy is∆TT×100 = 2∆pp×100+∆mm×100= 2×2 +3 = 7%