Questions
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.
a
0.28 cm3
b
0.1443 cm3
c
0.144 cm3
d
0.14 cm3
detailed solution
Correct option is D
Given, l=21.7 cm, r=0.46 mm=0.046 cmVolume of wire V=πr2l=227(0.046)2(21.7) =0.1443 cm3 =0.14 cm3Talk to our academic expert!
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