A cube has a side of length 1.2 x 10-2 m. Its volume is :

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1.7 x 10-6 m3

1.73 x 10-6 m3

1.70 x 10-6 m3

1.732 x 10-6 m3

answer is A.

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Detailed Solution

Volume = (1.2 x 10-2)3 = 1.728 x 10-6 m3 = 1.7 x 10-6 m3 because side length is having only two significant figures.

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