The internal and external diameter of a hollow cylinder are measured with the help of vernier callipers. Their values are (4.23 ± 0.01) cm and (3.87 ± 0.01) cm respectively. The thickness of the wall of the cylinder with error limits is:
0.36 ± 0.02 cm
0.18 ± 0.02 cm
0.36 ± 0.01 cm
0.18 ± 0.01 cm
Thickness of wall
= ½ (4.23 − 3.87) ± (0.01 + 0.01)
= (0.18 ± 0.02) cm
A packet contains silver powder having mass (20.23 ± 0.01) g. Some additional po
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