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[UPSC CSE 2010] Polarisation and Modern Optics (Q404, 10M)
What should be the refractive index of cladding of an optical fibre with numerical aperture 0.5 with refractive index of core as 1.5?
What should be the refractive index of cladding of an optical fibre with numerical aperture 0.5 with refractive index of core as 1.5?
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