MCQ · ঢাকা বিশ্ববিদ্যালয় ভর্তি পরীক্ষা · ২০২২
নিচের কোনটি ε₀μ₀ এর একক?
- কm²s⁻²
- খm^{1/2}s^{-1/2}
- গm⁻¹s
- ঘm⁻²s²
সঠিক উত্তর: ঘ) m⁻²s²
ব্যাখ্যা
C = 1/√(μ₀ε₀) ⇒ μ₀ε₀ = 1/C²; তাই একক = 1/(ms⁻¹)² = m⁻²s²।
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