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प्रश्न
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
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उत्तर
Total internal reflection occurs only when a ray of light passes from a denser medium to a rarer medium.
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संबंधित प्रश्न
You are given prisms made of crown glass and flint glass with a wide variety of angles. Suggest a combination of prisms which will
(a) deviate a pencil of white light without much dispersion,
(b) disperse (and displace) a pencil of white light without much deviation.
Write the relation between the refractive index and critical angle for a given pair of optical media?
Prove the statement.
A rainbow is the combined effect of the refraction, dispersion, and total internal reflection of light.
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:
(a) A ray of monochromatic light enters glass PQRS as shown in the fig. Complete the path of ray till it emerges from the glass. (Critical angle of glass is 420).
(b) Draw diagram of a prism periscope.
(c) What are the advantages of total internal reflecting prism over plane mirror?
Express the refractive index μ of a medium in terms of the angle of incidence i in air and the angle of refraction r in a denser medium.
Which of the following is not involved in formation of a rainbow?
The entire light is reflected back into the denser medium is called ______.
What are the conditions to achieve total internal reflection?
The phenomena involved in the reflection of radiowaves by ionosphere is similar to ______.
