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प्रश्न
Name the principle on the basis of which optical fibres work.
On what principle does optical fibre work?
Name the physical principle of optical fibers.
Name the physical principle on which the working of optical fibers is based.
Answer the following question briefly and to the point:
Name the physical principle on the basis of which optical fibres work.
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उत्तर
Optical fibres work on the principle of total internal reflection.
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संबंधित प्रश्न
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.

State the relation between the critical angle and the absolute refractive index of a medium.
What do you understand by the deviation produced by a prism? Why is it caused?
Plot a graph between
Sine of angle of incidence versus sine of angle of refraction,
Can light be ‘piped’ like sound in a doctor’s stethoscope?
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
Answer the following question.
What are the advantages of optical fibre communication over electronic communication?
The resultant `vec"R"` of `vec"P"` and `vec"Q"` is perpendicular to `vec"P"`. Also `|vec"P"|=|vec"R"|`. The angle between `vec"P"` and `vec"Q"` is ______.
[tan 45° = 1]
The diagram below shows a fish in the tank and its image seen on the surface of the water.

Name the phenomenon responsible for the formation of this image.
