1.Units, Dimensions and Measurement
hard

 Match List $-I$ with List $-II$
  List $-I$   List $-II$
$A$. Coefficient of Viscosity $I$. $[M L^2T^{–2}]$
$B$. Surface Tension  $II$. $[M L^2T^{–1}]$
$C$. Angular momentum $III$. $[M L^{-1}T^{–1}]$
$D$. Rotational Kinetic energy $IV$. $[M L^0T^{–2}]$

A$ A-II, B-I, C-IV, D-III$
B$ A-I, B-II, C-III, D-IV$
C$ A-III, B-IV, C-II, D-I$
D$A-IV, B-III, C-II, D-I$
(JEE MAIN-2024)

Solution

$ F=\eta A \frac{d v}{d y} $
$ {\left[M L T^{-2}\right]=\eta\left[L^2\right]\left[T^{-1}\right]} $
$ \eta=\left[M L^{-1} T^{-1}\right] $
$ S . T=\frac{F}{\ell}=\frac{\left[M L T^{-2}\right]}{[L]}=\left[M L^0 T^{-2}\right] $
$ L=m v r=\left[M L^2 T^{-1}\right] $
$ K . E=\frac{1}{2} I \omega^2=\left[M L^2 T^{-2}\right]$
Standard 11
Physics

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