Teaching HSSC TGT 2023 Mock Test (Latest Pattern) Physics Units, Dimensions and Measurements Accuracy, precision of instruments and errors in measurement
The product of two physical quantities X and Y is Z. The representation of the absolute error in the product is -
1
ΔZ = ΔA × ΔB
2
ΔZ = ΔA + ΔB
3
± ΔZ = ± ΔA ± ΔB
4
ΔZ = ± ΔA ÷ ΔB
5
Not Attempted