A cube has a side of length `1.2xx10^(-2)m`. Its volume upto correct significant figures is

Options

A. `1.7 xx 10^(-6) m^(3)`
B. `1.70 xx 10^(-6) m^(3)`
C. `1.70 xx 10^(-7) m^(3)`
D. `1.78 xx 10^(-6) m^(3)`

Answer

A

Explanation

`V=a^(3)=(1.2xx10^(-2))^(3)=1.728xx10^(-6)m^(3)`
`=1.7 xx10^(-6)m^(3)`