JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
Angle of minimum deviation is equal to the half of the angle of prism in an equilateral prism. The refractive index of the prism is __________.
- A \(1.5\)
- B \(\sqrt{3}\)
- C \(\sqrt{2}\)
- D \(1.65\)
Answer & Solution
Correct Answer
(C) \(\sqrt{2}\)
Step-by-step Solution
Detailed explanation
For an equilateral prism, the angle of the prism is \(A = 60^{\circ}\). Given that the angle of minimum deviation is half of the angle of the prism: \(\delta_{m} = \dfrac{A}{2} = \dfrac{60^{\circ}}{2} = 30^{\circ}\) The refractive index of the prism is given by:…
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