MCQ
Dimensions of stress are 
  • $\left[ M L ^{-1} T ^{-2}\right]$
  • B
    $\left[ M L T ^{-2}\right]$
  • C
    $\left[ M L ^{2} T ^{-2}\right]$
  • D
    $\left[ M L ^{0} T ^{-2}\right]$

Answer

Correct option: A.
$\left[ M L ^{-1} T ^{-2}\right]$
a
stress $=\frac{\text { Force }}{\text { Area }}$

$=\frac{M^{1} L^{1} T^{-2}}{L^{2}}$

stress $= M ^{1} L ^{-1} T ^{-2}$

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