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Question

Physics Question on physical world

Which of the following has the dimensions of pressure?

A

[MLT−2][MLT^{-2}]

B

[ML−1T−2][ML^{-1}T^{-2}]

C

[ML−2T−2][ML^{-2}T^{-2}]

D

[M−1L−1][M^{-1}L^{-1}]

Answer

[ML−1T−2][ML^{-1}T^{-2}]

Explanation

Solution

Pressure =ForceArea=\frac{\text{Force}}{\text{Area}}.Therefore dimensions of pressure =[MLT−2][L2]=\frac{[MLT^{-2}]}{[L^2]} =ML−1T−2=ML^{-1}T^{-2}.