A) \[2.25\times {{10}^{-4}}{{m}^{2}}\]
B) \[2.3\times {{10}^{-4}}{{m}^{2}}\]
C) \[2.2\times {{10}^{4}}{{m}^{2}}\]
D) \[2.0\times {{10}^{-4}}{{m}^{2}}\]
Correct Answer: C
Solution :
Area \[={{l}^{2}}=2.25\times {{10}^{-4}}{{m}^{2}}\] Since significant figure in \[l\] is 2 Hence result must be \[2.2\times {{10}^{-4}}{{m}^{2}}\] (using round off)
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