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Question

Question: Dimensional formula of stress is...

Dimensional formula of stress is

A

M0LT−2M^{0}LT^{- 2}

B

M0L−1T−2M^{0}L^{- 1}T^{- 2}

C

ML−1T−2ML^{- 1}T^{- 2}

D

ML2T−2ML^{2}T^{- 2}

Answer

ML−1T−2ML^{- 1}T^{- 2}

Explanation

Solution

Stress = ForceArea=[MLT−2][L2]=[ML−1T−2]\frac{\text{Force}}{\text{Area}} = \frac{\lbrack MLT^{- 2}\rbrack}{\lbrack L^{2}\rbrack} = \lbrack ML^{- 1}T^{- 2}\rbrack