A Light Wave Traveling at Speed V₁ in Medium 1

question 45

Multiple Choice

A light wave traveling at speed v₁ in medium 1 passes into medium 2 where its speed is v₂. By which of the following equations is the frequency f₁ of the wave in medium 1 related to its frequency f₂ in medium 2? θ₁ and θ₂ are the angles of incidence and refraction.)

• A) f₁ sin θ₁ = f₂ sin θ₂
• B) f₁v₂ = f₂v₁
• C) f₁ = f₂
• D) f₁v₁ = f₂v₂
• E) f₁ sin θ₂ = f₂ sin θ₁

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