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प्रश्न
What is meant by the statement, ‘the critical angle for diamond is 24°’?
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उत्तर
It means that when a light ray is incident inside a diamond at an angle greater than 24°, the light will be totally internally reflected.
Or R.I of diamond is 2.14, `[because 1/(sin24^\circ) = 2.14]`
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संबंधित प्रश्न
What do you understand by the deviation produced by a prism? Why is it caused?
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.
Draw diagram to illustrate the total internal reflection.
How does a ray of light bend when it travels from rarer to denser medium
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
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°).
Choose the correct option.
Select the WRONG statement.
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
For a ray of light, the critical angle is minimum when it travels from ______.
Which of the following statements about total internal reflection is true?
