defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Units, Dimensions and Measurements
The energy of a system is given as E(t) = α3 e–βt, where t is the time and β = 0.3 s–1. The errors in the measurement of α and t are 1.2% and 1.6%, respectively. At t = 5 s, maximum percentage error in the energy is :
1
4%
2
11.6%
3
6%
4
8.4%