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light ray is incident at an angle of 60 degree on one face of a rectangular prism of refractive angle 90 degree.if light ray grazes second face refractive index of material of prism |
| Answer» light ray is incident at an angle of 60 degree on one face of a rectangular prism of refractive angle 90 degree.if light ray grazes second face refractive index of material of prism | |