1.

A cube has a side of length 1*2xx10^(-2)m.

Answer»

`1.7xx10^(-6)m^(3)`
`1.73xx10^(-6)m^(3)`
`1.70xx10^(-6)m^(3)`
`1.732xx10^(-6)m^(3)`

SOLUTION :Here VOLUME`=(1*2xx10^(-2))^(3)=1*728xx10^(-6)m^(3)`Since the minimum NUMBER of significant figures in length `1*2xx10^(-2)` is only two, the same should hold good for the volume. Hence the ANSWER is `1*7xx10^(-6)m^(3)`.
Hence correct choice is `(a)`.


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