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प्रश्न
Can light be ‘piped’ like sound in a doctor’s stethoscope?
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उत्तर
Yes, light can be piped from one end to the other with little loss by allowing it to enter one end of a rod of transparent material. The light will undergo total internal reflection at the wall of the rod and will proceed along its axis. This actually being achieved by using a bundle of glass fibers.
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संबंधित प्रश्न
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
Calculate the speed of light in a medium whose critical angle is 30° ?
What is meant by the term ‘critical angle’?
Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
Solve Numerical example.
From the given data set, determine angular dispersion by the prism and dispersive power of its material for extreme colours. nR = 1.62 nV = 1.66, δR = 3.1°
Critical angle of light passing from glass to air is maximum for ____________.
For total internal reflection to take place, the angle of inddence i and the refractive index µ of the medium must satisfy the inequality ____________.
The angle of incidence at which the angle of refraction is Q£ is called the critical angle.
State two differences between normal reflection and total internal reflection.
