JEE MAIN - Physics (2025 - 28th January Evening Shift - No. 14)
Match List - I with List - II.
List - I | List - II |
---|---|
(A) Angular Impulse | (I) M0 L2 T-2 |
(B) Latent Heat | (II) M L2 T-3 A-1 |
(C) Electrical resistivity | (III) M L2 T-1 |
(D) Electromotive force | (IV) M L3 T-3 A-2 |
Choose the correct answer from the options given below:
Explanation
Matching the quantities from List - I with their correct dimensions from List - II is crucial to understanding their physical significance. Here is the correct matching:
(A) Angular Impulse: The dimensions of angular impulse are equivalent to those of angular momentum, represented as $$M L^2 T^{-1}$$. Hence, (A) corresponds to (III).
(B) Latent Heat: Latent heat has dimensions of energy per unit mass, which simplifies to $$M^0 L^2 T^{-2}$$. Hence, (B) corresponds to (I).
(C) Electrical resistivity: Electrical resistivity has the dimensions of resistance multiplied by length, which can be represented as $$M L^3 T^{-3} A^{-2}$$. Hence, (C) corresponds to (IV).
(D) Electromotive force: Electromotive force (emf) is similar to electric potential difference and has dimensions $$M L^2 T^{-3} A^{-1}$$. Hence, (D) corresponds to (II).
Therefore, the correct answer is Option C:
(A)-(III)
(B)-(I)
(C)-(IV)
(D)-(II)
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