1
Question
In an optical fibre, light is guided through it because of ___ .
In an optical fibre, light is guided through it because of
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Solution
The correct option is A Total Internal Reflection
Total internal reflection occurs when light traveling from a denser medium to a rarer medium is incident at the boundary at an angle greater than the critical angle. The light, instead of refracting, is internally reflected back to the denser medium. This property is used in optical fibres. The optical fibre is designed such that the angle of incidence is greater than the critical angle.
Total internal reflection occurs when light traveling from a denser medium to a rarer medium is incident at the boundary at an angle greater than the critical angle. The light, instead of refracting, is internally reflected back to the denser medium. This property is used in optical fibres. The optical fibre is designed such that the angle of incidence is greater than the critical angle.
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