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Two layers of glass are placed on top of each other. The light is travelling from the layer with refractive index n1 = 1.45 to that with refractive index n2 = 1.40 . If these layers are to be molded into an optical fiber with a core radius of 8 μm, Find (i) the critical angle (ii) the numerical aperture and the acceptance angle (iii) Find the cut-off wavelength and the number of modes if the V-number is 2.04

Two layers of glass are placed on top of each other. The light is travelling from the layer with refractive index n1 = 1.45 to that with refractive index n2 = 1.40 . If these layers are to be molded into an optical fiber with a core radius of 8 μm, Find (i) the critical angle (ii) the numerical aperture and the acceptance angle (iii) Find the cut-off wavelength and the number of modes if the V-number is 2.04

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1. Two layers of glass are placed on top of each other. The light is travelling from the layer with refractive index n1 = 1.45 to that with refractive index n2 = 1.40 . If these layers are to be molded into an optical fiber with a core radius of 8 μm, Find (i) the critical angle (ii) the numerical aperture and the acceptance angle (iii) Find the cut-off wavelength and the number of modes if the V-number is 2.04

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