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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Units and Measurement
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Identify the pair whose dimensions are equal

\[(a)\;torque\; and\;work\quad (b)\;stress\;and\;energy\quad (c)\;force\;and\;stress\quad (d)\;force \;and\;work\]

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1 Answer

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$W=Fs\cos \theta$
$\quad=[MLT^{-2}][L]=[ML^2T^{-2}]$
$T=\hat r \times \hat F=rF \sin \theta$
$\quad=[L][MLT^{-2}]=[ML^2T^{-2}]$
torque and work dimensions are equal.
Hence a is the correct answer.

 

answered Jun 16, 2013 by meena.p
edited Jan 9, 2014 by meena.p
 

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