A step index fibre has a relative refractive index of 0.88%. What is t – McqOptions

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1.	A step index fibre has a relative refractive index of 0.88%. What is the critical angle at the corecladding interface [Manipal 2003]
A.	60°
B.	75°
C.	45°
D.	None of these
Answer» E.

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