Which two of the following five physical parameters have the same dimensions?
(A) Energy density
(B) Refractive index
(C) Dielectric constant
(D) Young’s modulus
(E) Magnetic field

Question

Which two of the following five physical parameters have the same dimensions? (A) Energy density (B) Refractive index (C) Dielectric constant (D) Young’s modulus (E) Magnetic field

TestHub · Accepted Answer

[Energy density] = [ Work d o n e ] [ Volume ] = [ ML 2 T − 2 ] [ L 3 ] = [ ML − 1 T − 2 ] [Young’s modulus] = [ F A × l Δ l ] = [ ML ​ T − 2 ] [ L 2 ] [ L ] [ L ] = [ ML − 1 T − 2 ]

Physics - Unit & Dimension Question with Solution | TestHub

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