JEE Main 2026 · 5 Apr · Shift 1 · Physics Q27

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PhysicsSingle correct+4 / -1Question 27 of 75

$L$ , $C$ and $R$ represents physical quantities inductance, capacitance and resistance respectively. The dimensional formula $ML^2T^{-4}A^{-2}$ corresponds to ________.

\dfrac R{\sqrt{LC}}

\dfrac R{LC}

\dfrac C{\sqrt{LR}}

\dfrac1R\sqrt{\dfrac LC}

Answer and worked solution

Official answer: A

Dimensions.

$\sqrt{LC}$ is a time: $[T]$ .
$R=\dfrac VI$ has dimensions $ML^2T^{-3}A^{-2}$ .

So $\dfrac R{\sqrt{LC}}$ has dimensions $ML^2T^{-4}A^{-2}$ .

(A)

Topics:Dimensional analysis

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JEE Main 2026 · 5 Apr · Shift 1, Physics question 27