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a
2.7×10-6 m3
b
2.7×10-3 m3
c
7.2×10-6 m3
d
None of these
answer is A.
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Detailed Solution
Volume V=a3=1.4×10-2×1.4×10-2×1.4×10-2=2.744×10-6 m3Since, each value of a has two significant figures. Hence, we will round off the result to two significant figures,V=2.7×10-6 m3