A ray of mono- chromatic light is incident at the angle theta_(i) on refracting face of a prism of apex angle 75^(@). After refraction though prism it is incident on 2nd refracing surface, such that it grazes the surface. Refractive index of material of prism is sqrt(2). If critical angle of material of prism is theta_(c). Then find the ratio (theta_(i))/(theta_(c))

A ray of mono- chromatic light is incident at the angle theta_(i) on r

1.	A ray of mono- chromatic light is incident at the angle theta_(i) on refracting face of a prism of apex angle 75^(@). After refraction though prism it is incident on 2nd refracing surface, such that it grazes the surface. Refractive index of material of prism is sqrt(2). If critical angle of material of prism is theta_(c). Then find the ratio (theta_(i))/(theta_(c))
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