Which two of the following five physical para | vedclass

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(A) The dimensions of the given physical parameters are as follows:$(a)$ Energy density: $	ext{Energy} / 	ext{Volume} = [ML^2T^{-2}] / [L^3] = [ML^{

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$(a), (d)$

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(A) The dimensions of the given physical parameters are as follows:$(a)$ Energy density: $	ext{Energy} / 	ext{Volume} = [ML^2T^{-2}] / [L^3] = [ML^{-1}T^{-2}]$$(b)$ Refractive index: $	ext{Ratio of speeds} = 	ext{Dimensionless} = [M^0L^0T^0]$$(c)$ Dielectric constant: $	ext{Ratio of permittivities} = 	ext{Dimensionless} = [M^0L^0T^0]$$(d)$ Young's modulus: $	ext{Stress} / 	ext{Strain} = [ML^{-1}T^{-2}] / [M^0L^0T^0] = [ML^{-1}T^{-2}]$$(e)$ Magnetic field: $	ext{Force} / (	ext{Charge} 	imes 	ext{Velocity}) = [MLT^{-2}] / ([IT] 	imes [LT^{-1}]) = [MT^{-2}I^{-1}]$Comparing the dimensions,we see that $(a)$ Energy density and $(d)$ Young's modulus have the same dimensions,$[ML^{-1}T^{-2}]$.Therefore,the correct option is $(a), (d)$.

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

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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