Assertion: In the measurement of physical qua | vedclass

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Question

(B) The $Assertion$ is correct because physical quantities can be measured directly (e.g.,using a meter scale) or indirectly (e.g.,using parallax meth

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If both $Assertion$ and $Reason$ are correct but $Reason$ is not a correct explanation of the $Assertion$.

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(B) The $Assertion$ is correct because physical quantities can be measured directly (e.g.,using a meter scale) or indirectly (e.g.,using parallax method for distance of stars).The $Reason$ is also correct because the reliability of any measurement depends on the precision and accuracy of the instrument used,and the final result must account for the associated uncertainties or errors.However,the $Reason$ does not explain why we use direct or indirect methods; it explains the criteria for reporting a measurement. Therefore,the $Reason$ is not the correct explanation of the $Assertion$.

List-$I$	List-$II$
$(A)$ Coefficient of viscosity	$(I)$ $[ML^0T^{-3}]$
$(B)$ Intensity of wave	$(II)$ $[ML^{-2}T^{-2}]$
$(C)$ Pressure gradient	$(III)$ $[M^{-1}LT^2]$
$(D)$ Compressibility	$(IV)$ $[ML^{-1}T^{-1}]$

$Assertion$: In the measurement of physical quantities,direct and indirect methods are used.
$Reason$: The accuracy and precision of measuring instruments,along with errors in measurements,should be taken into account while expressing the result.

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Match List-$I$ with List-$II$.
List-$I$ List-$II$
$(A)$ Coefficient of viscosity $(I)$ $[ML^0T^{-3}]$
$(B)$ Intensity of wave $(II)$ $[ML^{-2}T^{-2}]$
$(C)$ Pressure gradient $(III)$ $[M^{-1}LT^2]$
$(D)$ Compressibility $(IV)$ $[ML^{-1}T^{-1}]$
Choose the correct answer from the options given below:

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$Assertion$: In the measurement of physical quantities,direct and indirect methods are used.$Reason$: The accuracy and precision of measuring instruments,along with errors in measurements,should be taken into account while expressing the result.