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Maths-General

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#### If

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#### In the adjoining diagram, a wavefront *AB*, moving in air is incident on a plane glass surface *XY*. Its position *CD* after refraction through a glass slab is shown also along with the normals drawn at *A* and *D*. The refractive index of glass with respect to air () will be equal to

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But in .....(ii)

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But in .....(ii)

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#### Values of is :

#### Values of is :

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