IIT JAM  >  Total internal reflection

Total internal reflection Notes - IIT JAM

Document Description: Total internal reflection for IIT JAM 2022 is part of IIT JAM preparation. The notes and questions for Total internal reflection have been prepared according to the IIT JAM exam syllabus. Information about Total internal reflection covers topics like and Total internal reflection Example, for IIT JAM 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Total internal reflection.

Introduction of Total internal reflection in English is available as part of our IIT JAM preparation & Total internal reflection in Hindi for IIT JAM courses. Download more important topics, notes, lectures and mock test series for IIT JAM Exam by signing up for free. IIT JAM: Total internal reflection Notes - IIT JAM
1 Crore+ students have signed up on EduRev. Have you?

When a ray of light emerges obliquely from glass into air, the angle of refraction between ray and normal is greater than the angle of incidence inside the glass, and at a sufficiently high obliquity the angle of refraction can actually reach 90°. In this case the emerging ray travels along the glass surface, and the sine of the angle of incidence inside the glass, known as the critical angle, is then equal to the reciprocal of the refractive index of the material. At angles of incidence greater than the critical angle, the ray never emerges, and total internal reflection occurs, for there is no measurable loss if the glass surface is perfectly clean. Dirt or dust on the surface can cause a small loss of energy by scattering some light into the air.

Light is totally internally reflected in many types of reflecting prism and in fibre optics, in which long fibres of high-index glass clad with a thin layer of lower index glass are assembled side-by-side in precise order. The light admitted into one end of each fibre is transmitted along it without loss by thousands of successive internal reflections at the interlayer between the glass and the cladding. Hence, an image projected upon one end of the bundle will be dissected and transmitted to the other end, where it can be examined through a magnifier or photographed. Many modern medical instruments, such as cystoscopes and bronchoscopes, depend for their action on this principle. Single thick fibres (actually glass rods) are sometimes used to transmit light around corners to an otherwise inaccessible location.

The document Total internal reflection Notes - IIT JAM is a part of IIT JAM category.
All you need of IIT JAM at this link: IIT JAM
Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Download as PDF

Download free EduRev App

Track your progress, build streaks, highlight & save important lessons and more!

Related Searches

Semester Notes

,

mock tests for examination

,

practice quizzes

,

Total internal reflection Notes - IIT JAM

,

Previous Year Questions with Solutions

,

Free

,

MCQs

,

Objective type Questions

,

video lectures

,

shortcuts and tricks

,

Exam

,

ppt

,

study material

,

past year papers

,

Total internal reflection Notes - IIT JAM

,

Important questions

,

pdf

,

Summary

,

Viva Questions

,

Total internal reflection Notes - IIT JAM

,

Extra Questions

,

Sample Paper

;