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Dimensional Analysis

Which physica...

Question

Which physical quantities have same dimensions?

A

Moment of couple and work

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B

Force and power

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C

Latent heat and specific heat

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D

Work and power

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Solution

The correct option is A Moment of couple and work
Moment of couple $=$ force $\times$ perpendicular distance $= [M^{1} L^{2} T^{- 2}]$
Work $=$ force $\times$ distance $= [M^{1} L^{2} T^{- 2}]$
They have the same dimension.

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