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A ray of light is incident at an angle of 450 on a square slab of a transparent material. What should be the refractive index of the material of the slab so that total internal reflection occurs at the vertical face AB. |
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Answer» A ray of light is incident at an angle of 450 on a square slab of a transparent material. What should be the refractive index of the material of the slab so that total internal reflection occurs at the vertical face AB. |
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