engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Units, Dimensions and Measurements Accuracy, precision of instruments and errors in measurement
If \(Z=\frac{A^2 B^3}{C^4} \), then the relative error in Z will be
1
\(\frac{\Delta A}{A}+\frac{\Delta B}{B}+\frac{\Delta C}{C} \)
2
\(\frac{2 \Delta A}{A}+\frac{3 \Delta B}{B}-\frac{4 \Delta C}{C} \)
3
\(\frac{2 \Delta A}{A}+\frac{3 \Delta B}{B}+\frac{4 \Delta C}{C} \)
4
\(\frac{\Delta A}{A}+\frac{\Delta B}{B}-\frac{\Delta C}{C} \)