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A glass spherical shell of center O with an outer radius ‘R’ and inner radius ‘r’ has refractive index μ2, the inside of the shell is filled with a material whose refractive index is μ1 as shown in figure (i). A source of light S is placed at a distance ‘a’ from the center as shown. If a ray of light starting at S gets double refracted into the surrounding as shown in (ii) with β2=90∘. Dotted lines represent normals at the points of refraction. Choose the correct option/s. (i) (ii) |
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Answer» A glass spherical shell of center O with an outer radius ‘R’ and inner radius ‘r’ has refractive index μ2, the inside of the shell is filled with a material whose refractive index is μ1 as shown in figure (i). A source of light S is placed at a distance ‘a’ from the center as shown. If a ray of light starting at S gets double refracted into the surrounding as shown in (ii) with β2=90∘. Dotted lines represent normals at the points of refraction. |
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