Advertisements
Advertisements
Question
State the relation between the critical angle and the absolute refractive index of a medium.
Solution
`mu = 1/(sin c)` or `sin c = 1/mu`where ‘c’ is the critical angle and ‘μ’ is the absolute refractive index.
APPEARS IN
RELATED QUESTIONS
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.
Draw diagram to illustrate the total internal reflection.
How does a ray of light bend when it travels from rarer to denser medium
How is the critical angle of a material related to its refractive index?
The diagram shows a point source P inside a water container. Three rays A, B, and C starting from P are shown up to the water surface. Show in the diagram the path of these rays after striking the water surface. The critical angle for the water-air pair is 48°.
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur.
What are the examples of total internal reflection in nature?
A ray of light passes from vacuum into a medium of refractive index µ, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is ______.