If u1 and u2 are the units selected in two systems of measurement and n1 and n2 their numerical values, then

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n1u1=n2u2

n1u1+n2u2=0

n1n2=u1u2

n1+u1=n2+u2

answer is A.

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Detailed Solution

Physical quantity (p) = Numerical value (n) × unit (u)If physical quantity remains constant thenn∝1/u ∴n1u1=n2u2

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