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JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
A monochromatic light is incident at a certain angle on an equilateral triangular prism and suffers minimum deviation. If the refractive index of the material of the prism is \(\sqrt 3\) , then the angle of incidence....\(^o\)
- A \(90\)
- B \(30\)
- C \(60\)
- D \(45\)
Answer & Solution
Correct Answer
(C) \(60\)
Step-by-step Solution
Detailed explanation
\(i=\theta\) \(r_{1}=r_{2}=\frac{A}{2}=30^{\circ}\) by Snell's law \(1 \times \sin i = \sqrt 3 \times \frac{1}{2} = \frac{{\sqrt 3 }}{2}\) \(i=60\)
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