![]() ![]() The absolute error = The absolute error in first measurement + The absolute error in second measurement The procedure of calculating error in case of indirect measurement depends on the mathematical operation applied :Įxample : Measuring the volume of two amounts of a liquid , V = V 1 + V 2, Finding the volume of a coin by subtracting the volume of water before dropping the coin into the measuring cylinder from that after dropping it, V coin = V 2 – V 1. ![]() Estimating error in case of indirect measurement This meant that the relative error is a better indication for measurement than the absolute error, As the relative error decreases, the measurement accuracy increases. Īlthough the absolute error in measuring the classroom length is greater than that in measuring the pencil length, the relative error in measuring the classroom length is less than in measuring the pencil length. The relative error is a better indication for the measurement accuracy than the absolute error, The measurement accuracy is considered higher as the relative error decreases, It has no measuring unit because it is the ratio between two quantities having the same measuring units. ![]()
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