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Units and Measurements question

2025 · 23 Jan · Shift 2 · Q66
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Units and Measurements question

2025 · 23 Jan · Shift 2 · Q66

JEE MainPhysicsUnits and MeasurementsMCQ+4 / −1
The energy of a system is given as E(t)=α3e−βt\mathrm{E}(\mathrm{t})=\alpha^3 \mathrm{e}^{-\beta t}E(t)=α3e−βt, where t is the time and β=0.3 s−1\beta=0.3 \mathrm{~s}^{-1}β=0.3 s−1. The errors in the measurement of α\alphaα and ttt are 1.2%1.2 \%1.2% and 1.6%1.6 \%1.6%, respectively. At t=5 st=5 \mathrm{~s}t=5 s, maximum percentage error in the energy is :
  1. A
    6%6 \%6%
  2. B
    11.6%11.6 \%11.6%
  3. C
    4%4 \%4%
  4. D
    8.4%8.4 \%8.4%
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