A) \[1\,J{{m}^{-2}}\]
B) \[1\,J{{m}^{3}}\]
C) \[1\,J{{m}^{2}}\]
D) None of these
Correct Answer: A
Solution :
Given, \[\frac{1\,newton}{metre}\] Or \[\frac{1\,newton-metre}{metr{{e}^{2}}}\] \[=\frac{force\times distance}{{{(distance)}^{2}}}=\frac{1\text{ }joule}{{{(metre)}^{2}}}\] \[\therefore \] \[N/m=1\text{ }J/{{m}^{2}}=1\text{ }J{{m}^{-2}}\]
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