The exit surface of a prism with refractive index n is coated with a material having refractive index \frac{n}{2}. When this prism is set for minimum angle of deviation, it exactly meets the condition of critical angle. The prism angle is \_\_\_\_ . [24 jan 2026 Shift 1]

Ray Optics and Optical Instruments Part 3

Section: Physics

Question : 8 of 56

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The exit surface of a prism with refractive index n is coated with a material having refractive index ‌

. When this prism is set for minimum angle of deviation, it exactly meets the condition of critical angle. The prism angle is ____ .

[24 jan 2026 Shift 1]

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