A) \[\left[ M{{L}^{-1}}{{T}^{-3}}\left. {} \right] \right.\]
B) \[\left[ M{{L}^{-2}}{{T}^{-3}}\left. {} \right] \right.\]
C) \[\left[ M{{L}^{-2}}{{T}^{-1}}\left. {} \right] \right.\]
D) \[\left[ ML{{T}^{-1}}\left. {} \right] \right.\]
Correct Answer: B
Solution :
\[F=-\eta A\frac{dv}{dx}\]\[\Rightarrow \]\[[\eta ]=[M{{L}^{-1}}{{T}^{-1}}]\]
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