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संबंधित प्रश्न
What do you understand by the deviation produced by a prism? Why is it caused?
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
Solve Numerical example.
A monochromatic ray of light is incident at 37° on an equilateral prism of refractive index 3/2. Determine angle of emergence and angle of deviation. If angle of prism is adjustable, what should its value be for emergent rays to be just possible for the same angle of incidence?
A green light is incident from the water to the air-water interface at the critical angle (C). Select the correct statement.
Total internal reflection can take place only if light is travelling from ______.
Optical fibre communication uses the principle of ______.
The entire light is reflected back into the denser medium is called ______.
- 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.
When a ray of light is refracted from one medium to another, then the wavelength changes from 6000 Å to 4000 Å. The critical angle for the interface will be ______.
