Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

what are optical fibres

Asked by 24th August 2008, 11:14 PM
Answered by Expert
Answer:

It is a glass or plastic core surrounded by a cladding made up of a similar material but with a lower refractive index. Its diameter is much small compared to its length.

 When light enters this optical fibre, it strikes the interface in denser medium at an angle, that is greater than the so called ‘critical angle’ and is totally reflected back in the same denser medium .This happens each time the light ray strikes the wall and it travels inside the fibre. Only when it reaches the other end, it is allowed to exit the fibre.

Answered by Expert 25th August 2008, 1:47 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp