Textile Engineering > GATE 2020 > Fibre Properties
The refractive indices of a filament in axial and radial directions are 1.58 and 1.52 respectively. The birefringence of the filament (correct up to 2 decimal places) is ________.

Correct : 0.06

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birefringence calculation refractive index filament GATE Textile Engineering 2020 textile engineering gate birefringence formula GATE 2020 question 17 refractive index difference GATE 2020 Textile

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