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प्रश्न
Draw diagram to illustrate the total internal reflection.
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उत्तर
When the incidence angle is greater than the critical angle, i.e., in the case of total internal reflection.
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संबंधित प्रश्न
Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
Write the relation between the refractive index and critical angle for a given pair of optical media?
How does a ray of light bend when it travels from denser to rarer medium.
Why do diamonds sparkle?
State one factor on which a critical angle for a given pair of media depends. The critical angle for the glass-air interface is 45° for the yellow light. Will it be equal to, less than or greater than 45° for (i) red light, (ii) blue light?
Name the factors affecting the critical angle for the pair of media.
Optical Fibres are based on the phenomenon of dispersion.
What are the examples of total internal reflection in nature?
- 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.
