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प्रश्न
Name the principle on the basis of which optical fibres work.
उत्तर
Optical fibres work on the principle of total internal reflection.
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संबंधित प्रश्न
You are given prisms made of crown glass and flint glass with a wide variety of angles. Suggest a combination of prisms which will
(a) deviate a pencil of white light without much dispersion,
(b) disperse (and displace) a pencil of white light without much deviation.
Plot a graph between
Angle of incidence versus angle of refraction.
How does a ray of light bend when it travels from denser to rarer medium.
What is meant by the term ‘critical angle’?
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
Answer the following question.
Why is prism binoculars preferred over traditional binoculars? Describe its working in brief.
The angle of minimum deviation produced by a thin glass prism in air is 'δ'. If that prism is immersed in water, the angle of minimum deviation will be ______.
( aμg = refractive index of glass w.r.t, air aμw = refractive index of water w.r.t. air)
The twinkling effect of star light is due to ______.
Optical Fibres are based on the phenomenon of dispersion.
A Rainbow is a beautiful natural phenomenon formed because of the following:
