JEE Main 2025 Jan 28 Shift 2, Physics Q3: Units And Dimensions

JEE Main2025Jan 28, Shift 2Physics

Match List-I with List-II

Choose the correct answer from the options given below :

Solution

Angular impulse equals change in angular momentum: $[M L^{2} T^{- 1}]$ , so (A) $\to$ (III).

Latent heat is energy per unit mass: $[L^{2} T^{- 2}] = [M^{0} L^{2} T^{- 2}]$ , so (B) $\to$ (I).

Electrical resistivity $ρ = R A / L$ gives $[M L^{3} T^{- 3} A^{- 2}]$ , so (C) $\to$ (IV).

EMF has the same units as potential: $[M L^{2} T^{- 3} A^{- 1}]$ , so (D) $\to$ (II).

Concept behind this question

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