[Solution from source] Since c = 1/√(μ₀ε₀), the quantity (μ₀ε₀)^(−1/2) is simply the speed of light and has dimensions [LT⁻¹]. The inverse [L⁻¹T] would be the dimensions of √(μ₀ε₀) itself. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.