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Doppler Effect in Light Waves

The principle...

Question

The principle used in the transmission of signals through an optical fibre is

A

Total internal reflection

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B

Refraction

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C

Dispersion

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D

Interference

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Solution

The correct option is A
Total internal reflection

Signals propagate through an optical fibre by suffering repeated total internal reflections.

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Similar questions

Q. Optical fibre works on the principle of total internal reflection.

Q. Assertion :Optical fibres make use of total internal reflection. Reason: Light undergoes successive total internal reflections as it moves through an optical fibre.

Q. Assertion (A): Propagation of light through an optical fibre is due to total internal reflection taking place at the core-cladding interface.
Reason (R) : Refractive index of the material of the core of the optical fibre is greater than that of air.

Q. Assertion : Optical fibres are used for telecommunication.
Reason : Optical fibres are based on the phenomenon of total internal reflection.

Q. Question 5
Which of the following phenomena of light are involved in the formation of a rainbow?

(a) Reflection, refraction and dispersion
(b) Refraction, dispersion and total internal reflection
(c) Refraction, dispersion and internal reflection
(d) Dispersion, scattering and total internal reflection

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