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Question
Draw diagram to illustrate the total internal reflection.
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Solution
When the incidence angle is greater than the critical angle, i.e., in the case of total internal reflection.
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RELATED QUESTIONS
State the conditions required for total internal reflection of light to take place
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
How are critical angles related to the refractive index of the medium?
What is meant by the term ‘critical angle’?
Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
Answer the following question.
Define the critical angle of incidence and obtain an expression for it.
For total internal reflection to take place, the angle of inddence i and the refractive index µ of the medium must satisfy the inequality ____________.
For a ray of light, the critical angle is minimum when it travels from ______.
