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(C) The volume of a cylinder is given by $V = \pi r^2 l$.The relative error in volume is given by $\frac{\Delta V}{V} = 2 \frac{\Delta r}{r} + \frac{\

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(C) The volume of a cylinder is given by $V = \pi r^2 l$.The relative error in volume is given by $\frac{\Delta V}{V} = 2 \frac{\Delta r}{r} + \frac{\Delta l}{l}$.Given:Length $l = 5.0 \, cm$,$\Delta l = 0.1 \, cm$.Radius $r = 2.0 \, cm$,$\Delta r = 0.01 \, cm$ (since the least count of the vernier caliper applies to the diameter,the error in radius is the same as the least count of the instrument,$0.01 \, cm$).Percentage error in volume = $\left( 2 \frac{\Delta r}{r} + \frac{\Delta l}{l} ight) 	imes 100$.$= \left( 2 	imes \frac{0.01}{2.0} 	imes 100 + \frac{0.1}{5.0} 	imes 100 ight) \%$.$= (1 + 2) \% = 3 \%$.

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

List-$I$	List-$II$
$(a)$ ${R}_{H}$ (Rydberg constant)	$(i)$ ${kg} {m}^{-1} {s}^{-1}$
$(b)$ $h$ (Planck's constant)	$(ii)$ ${kg} {m}^{2} {s}^{-1}$
$(c)$ $u_{B}$ (Magnetic field energy density)	$(iii)$ ${m}^{-1}$
$(d)$ $\eta$ (Coefficient of viscosity)	$(iv)$ ${kg} {m}^{-1} {s}^{-2}$

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

Which of the following statements is true?

The ratio of the strengths of the four fundamental forces in nature,$F_{G}: F_{N}: F_{E}: F_{W}=$

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