Question

Which of the following do not have the same dimensional formula as the velocity?
Given that μ₀ = permeability of free space, ε₀ = permittivity of free space, v = frequency, λ = wavelength, P = pressure, ρ = density, ω = angular frequency, k = wave number,
(a) $\frac{1}{\sqrt{\mu_{0}\epsilon_{0}}}$
(b) vλ
(c) $\sqrt{\frac{P}{\rho}}$
(d) ωk

Answer 1

permiability of free space