Consider the following statements:(A) Any phy | vedclass

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(A) Statement $(A)$ is correct: $A$ physical quantity can be measured in different units (e.g.,length can be measured in $m, cm, ft, inch$).Statement

Vedclass · Accepted Answer

$4$

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(A) Statement $(A)$ is correct: $A$ physical quantity can be measured in different units (e.g.,length can be measured in $m, cm, ft, inch$).Statement $(B)$ is correct: The dimensional formula of a physical quantity is unique,representing its fundamental nature.Statement $(C)$ is correct: Different physical quantities can share the same dimensions (e.g.,work and energy both have dimensions $[ML^2T^{-2}]$).Statement $(D)$ is correct: According to the principle of homogeneity of dimensions,only physical quantities with the same dimensions can be added or subtracted.Since all four statements are correct,the total number of correct statements is $4$.

$I$ (Fundamental forces in nature)	$II$ (Relative strength)
$(A)$ Strong nuclear force	$(e)$ $10^{-2}$
$(B)$ Weak nuclear force	$(f)$ $1$
$(C)$ Electromagnetic force	$(g)$ $10^{10}$
$(D)$ Gravitational force	$(h)$ $10^{-13}$
	$(i)$ $10^{-39}$

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