Choose the most appropriate answer from the option given below :
A$(a)-(iii), (b) -(i), (c)-(iv), (d)-(ii)$
B$(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)$
C$(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)$
D$(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)$
JEE MAIN 2021, Medium
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A$(a)-(iii), (b) -(i), (c)-(iv), (d)-(ii)$
a torque $\tau \rightarrow {ML}^{2} {T}^{-2}$ $(III)$
Impulse $I$ $\Rightarrow {MLT}^{-1}$ $(I)$
Tension force $\Rightarrow {MLT}^{-2}$ $(IV)$
Surface tension $\Rightarrow {MT}^{-2}$ $(II)$
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Assertion : The error in the measurement of radius of the sphere is $0.3\%$. The permissible error in its surface area is $0.6\%$
Reason : The permissible error is calculated by the formula $\frac{{\Delta A}}{A} = \frac{{4\Delta r}}{r}$
The time dependence of a physical quantity $P$ is given by $P\, = \,{P_0}\,{e^{ - \alpha {t^2}}}$ where $\alpha $ is a constant and $t$ is the time then constant $\alpha $ is
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