A step index fibre has critical angel at the core-cladding interface ?

For an optical fibre ,the ratio of the refractive index of the core to the refractive index of the cladding is 1.25 . What is the critical angle at the core cladding interface ?

A sept index fibre has a relavitive refractive index of 0.88% . What is the critical angle at the core-cladding interface?

A sept index fibre has a relavitive refractive index of 0.88% . What is the critical angle at the core-cladding interface?

The velocity of light in the core of a step index fibre 2xx10^(8) m//s and the critical angle at the core-cladding interface is 80^(@) .Find the numerical aperture and the acceptance angle for the fibre in air.The velocity of light in vacuum is 3xx10^(8)m//s

A step index fibre has a relative refractive index difference of 0.86% Estimate the critical angle at the core-cladding interface

A step index fibre has a relative refractive index difference of 0.86% Estimate the critical angle at the core-cladding interface

A step index fibre has a relative refractive index difference of 0.86% Estimate the critical angle at the core-cladding interface