Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
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° ?
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
Can light be ‘piped’ like sound in a doctor’s stethoscope?
Name the factors affecting the critical angle for the pair of media.
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
Answer the following question.
What are the advantages of optical fibre communication over electronic communication?
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°
- Assertion (A): Propagation of light through an optical fibre is due to total internal reflection taking place at the core-cladding interface.
- Reason (R): Refractive index of the material of the cladding of the optical fibre is greater than that of the core.
