Advertisements
Advertisements
प्रश्न
Name the factors affecting the critical angle for the pair of media.
Advertisements
उत्तर
Factors affecting the critical angle:
(i) Angle of incidence.
(ii) Refractive index of the medium.
APPEARS IN
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.
The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface

1) Show in the diagram the path of these rays after striking the water surface.
The Critical Angle for the water-air surface is 48°.
2) Name the phenomenon which the rays B and D exhibit.
Two isosceles right-angle glass prisms P and Q are placed near each other as shown in Fig. Complete the path of the light ray entering the prism P till it emerges out of the prism Q.
What is meant by the statement, ‘the critical angle for diamond is 24°’?
Answer the following question.
Define the critical angle of incidence and obtain an expression for it.
Answer the following question.
What are the advantages of optical fibre communication over electronic communication?
Which of the following statements about total internal reflection is true?
The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur.
