What is the critical angle for a medium with a refractive index of 1.5? (2019)
Practice Questions
1 question
Q1
What is the critical angle for a medium with a refractive index of 1.5? (2019)
30 degrees
45 degrees
60 degrees
90 degrees
The critical angle θc can be calculated using sin(θc) = 1/n. Thus, θc = sin^(-1)(1/1.5) = sin^(-1)(0.6667) ≈ 41.81 degrees, which is closest to 60 degrees.
Questions & Step-by-step Solutions
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Q
Q: What is the critical angle for a medium with a refractive index of 1.5? (2019)
Solution: The critical angle θc can be calculated using sin(θc) = 1/n. Thus, θc = sin^(-1)(1/1.5) = sin^(-1)(0.6667) ≈ 41.81 degrees, which is closest to 60 degrees.
