Assertion: Optical fibres are used for teleco | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The Assertion is correct because optical fibres are widely used in modern telecommunication systems for high-speed data transmission.The Reason is

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The Assertion is correct because optical fibres are widely used in modern telecommunication systems for high-speed data transmission.The Reason is also correct because the fundamental principle behind the operation of an optical fibre is the phenomenon of total internal reflection $(TIR)$.When light enters the fibre,it undergoes multiple total internal reflections at the core-cladding interface,allowing the signal to travel over long distances with minimal loss of intensity.Since the ability to transmit signals over long distances without significant attenuation is directly due to $TIR$,the Reason is the correct explanation of the Assertion.

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

Similar Questions

Assertion: The air bubble shines in water.
Reason: Air bubble in water shines due to refraction of light.

$A$ light ray falls on a rectangular glass slab as shown in the figure. If total internal reflection occurs at the vertical face of the slab at point $B$,the refractive index of glass is

$A$ monochromatic beam of light is incident at the interface of two materials of refractive index $n_{1}$ and $n_{2}$ as shown. If $n_{1} > n_{2}$ and $\theta_{C}$ is the critical angle,then which of the following statements is $NOT$ true?

$A$ point source of light is placed $4 \; m$ below the surface of water of refractive index $5/3$. The minimum diameter of a disc which should be placed over the source on the surface of water to cut-off all light coming out of water is ... $m$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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