AP EAMCET · PHYSICS · Ray Optics
A ray of light is incident at \(30^{\circ}\) from a medium of refractive index 2 into a medium of refractive index 1 , then the angle of refraction is
- A \(30^{\circ}\)
- B \(60^{\circ}\)
- C \(45^{\circ}\)
- D \(90^{\circ}\)
Answer & Solution
Correct Answer
(D) \(90^{\circ}\)
Step-by-step Solution
Detailed explanation
By Snell's law \(2 \sin 30^{\circ}=1 \sin r\) \(\Rightarrow \sin r=1 \Rightarrow r=90^{\circ}\)
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