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NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Dimensions of stress are
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Correct option: D
[ M L−1 T−2 ]\mathrm{[}\,\mathrm{M}\,{\mathrm{L}^{ - 1}}\,{\mathrm{T}^{ - 2}}\,]
Option D ([ M L−1 T−2 ]\mathrm{[}\,\mathrm{M}\,{\mathrm{L}^{ - 1}}\,{\mathrm{T}^{ - 2}}\,\mathrm{]}) is correct because stress is force per unit area, and the dimensions of force are [MLT−2][MLT^{-2}] and area are [L2][L^2], so stress is [ML−1T−2][ML^{-1}T^{-2}].

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