Column I Column II (I) Curie

Physics Units, Dimensions and Measurement Matching Type Question Single Correct MCQ

Published on: September 11, 2026

Column I Column II

(I) Curie

\(MLT \cdot 2\) (II) Light year (I) G, (II) H, (III) C, (IV) B, (V) C

\(\mathbf{M}\) (III) Dielectric strength (I) D, (II) H, (III) I, (IV) B, (V) G

Dimensionless (IV) Atomic weight (I) G, (II) H, (III) I, (IV) B, (V) G

\tau (V) Decibel (E) \iiint L^{2} T^{-2} (F) \(\iint T \cdot d\Gamma\) (G) \Gamma^{-1} (H) l (I) \(MLT \cdot sr^{-1}\) (J) LT'' Choose the correct match None of the above

Text Solution

Verified by Experts

The correct answer is:

Step 1: Identify the terms in Column I and their corresponding physical quantities.

Curie (I): A unit of radioactivity that indicates the activity of a quantity of radioactive material in which 3.7 × 10¹⁰ disintegrations occur per second. This can be denoted as 'C'.
Light year (II): A unit of distance that represents how far light travels in one year. This is often not defined in standard physical dimensions.
Dielectric strength (III): The maximum electric field that a pure material can withstand under ideal conditions without breaking down. This is typically defined in volts per meter (V/m).
Atomic weight (IV): A dimensionless quantity that represents the weighted average of the masses of the isotopes of an element.
Decibel (V): A logarithmic unit used to measure the intensity of sound, which is also dimensionless.

Step 2: Analyze the options.
Based on the descriptions above, corresponding matches can be denoted as follows:

Curie (I) relates to G.
Light year (II) does not have a representation in the options provided.
Dielectric strength (III) corresponds to D.
Atomic weight (IV) corresponds to H.
Decibel (V) corresponds to I.

Final Step: Determine the correct match.
Option A correctly identifies (I) Curie with (G) fulfilling the correct pairing of definitions.

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