0 answered · 10 remaining
⏱ 15:00
🧪 Test Mode — answers hidden until you finish
Optics — Refractive Index (dense→less)
1 / 10
WAEC 2018
Light goes from glass (n=1.5) to air (n=1). The critical angle θ_c satisfies:
🧪 Test mode — answers hidden until you finish