A) \[70N/m\]
B) \[7\times {{10}^{-2}}N/m\]
C) \[7\times {{10}^{2}}N/m\]
D) \[7\times {{10}^{3}}N/m\]
Correct Answer: B
Solution :
[b] \[S=70\frac{dyne}{cm}=\frac{70\times {{10}^{5}}N}{{{10}^{-2}}m}\] \[=70\times {{10}^{-3}}N/m.\]
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