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A thin wire has a length of 21.7 cm and ...

A thin wire has a length of 21.7 cm and radius 0.46 mm. Calculate the volume of the wire to correct significant figures.

Text Solution

Verified by Experts

Given `l= 21.7 cm, r=0.46 mm = 0.046 cm`
Volume of wire `V = pi r^(2)l`
`= (22)/(7)(0.046)^(2)(21.7)= 0.1443 cm^(2)= 0.14 cm^(3)`
The result is rounded off to least number of significant figures in the given measurements i.e., 2 (in 0.46 mm).
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