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A ray of light falls on the plane surface of a half cylinder at an angle 45∘ in the plane perpendicular to the axis (see figure). Refractive index of glass is √2 and radius of cylinder is √3 m. The value of OP in critical case is |
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Answer» A ray of light falls on the plane surface of a half cylinder at an angle 45∘ in the plane perpendicular to the axis (see figure). Refractive index of glass is √2 and radius of cylinder is √3 m. The value of OP in critical case is |
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