Since light is fastest in space, ___, always! n • ≥ Which substance in the picture below has the greatest optical density? Explain your reasoning. Is the difference between the optical density of air and a vacuum significant? In a vacuum: ______ n In air: ______ n The majority of the time, the difference is so small that air is • treated like a ___________ Trig Review: SOH CAHTOA sin = θ = θ Snell’s Law: n1 1 incident angle
• Since light is fastest in space, n ≥ ___, always! Which substance in the picture below has the greatest optical density? Explain your reasoning. Is the difference between the optical density of air and a vacuum significant? In a vacuum: n ______ In air: n ______ • The majority of the time, the difference is so small that air is treated like a ___________ Trig Review: SOH CAHTOA sin θ = θ = Snell’s Law: n1 1 incident angle