First slide
Accuracy; precision of instruments and errors in measurements
Question

The length l, breadth b, and thickness t of a block of wood were measured with the help of a measuring scale. The results with permissible errors (in cm) are l=15.12±0.01,b=10.15±0.01, and t=5.28±0.01 The percentage error in volume up to proper significant figures is

Moderate
Solution

Percentage error in volume is

0.0115.12×100+0.0110.15×100+0.015.28×100=0.35%

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