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Identify the pair that is incorrectly paired.

1. (a) IV(iv)R
2. (b) III(iv)Q
3. (c) II(ii)R
4. (d) IV(iii)P

Correct answer: (c) II(ii)R

Solution

In such matching questions, each item must correspond to the correct physical quantity, unit, or dimensional form. The pair II(ii)R is the mismatched one, so it is incorrectly paired.

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