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Units and Measurements question

2015 · Shift 2 · Q44
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Units and Measurements question

2015 · Shift 2 · Q44

JEE AdvancedPhysicsUnits and MeasurementsNumerical+4 / −1
The energy of a system as a function of time t is given as E(t) = A2exp⁡(−αt){A^2}\exp \left( { - \alpha t} \right)A2exp(−αt), where α=0.2 s−1\alpha = 0.2\,{s^{ - 1}}α=0.2s−1. The measurement of A has an error of 1.25 %. If the error in the measurement of time is 1.50 %, the percentage error in the value of E(t) at t = 5 s is
Numerical answer
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