NEET Physics Total Internal Reflection MCQ Question
In the figure, a ray of light is perpendicular to the face AB of a glass prism (μ = 1.52). Find the value of θ so that the ray is totally reflected at face AC, if the prism is immersed in water (μ = 1.33). take sin 60° = 0.875
45°
30°
15°
None of these
Correct Answer
Detailed Explanation
Using Snell's law and the condition for total internal reflection, the critical angle is calculated to be 30°.
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