Question:
A cube has a side of length $1.2 \times 10^{ - 2 }\, m$. Calculate its volume.
A cube has a side of length $1.2 \times 10^{ - 2 }\, m$. Calculate its volume.
Updated On: Jun 14, 2022
- $ 1.7 \times 10^{ - 6 } m^3 $
- 1.73 $ \times 10^{ - 6 } \, m^3 $
- 1 . 70 $ \times 10^{ - 6 } m^3$
- 1 . 732 $ \times 10^{ - 6 } m^3 $
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The Correct Option is A
Solution and Explanation
$ V = l^3 = ( 1 . 2 \times 10^{ - 2 } \, m)^3 $
= 1.728 $ \times 10^{ - 6 } m^3 $
$\because$ Length (l )has two significant figures, the volume (V) will also have two significant figures. Therefore, the 'correct answer is
$V = 1.7 \times 10^{-6} m^3$
= 1.728 $ \times 10^{ - 6 } m^3 $
$\because$ Length (l )has two significant figures, the volume (V) will also have two significant figures. Therefore, the 'correct answer is
$V = 1.7 \times 10^{-6} m^3$
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