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प्रश्न
State two differences between normal reflection and total internal reflection.
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उत्तर
| Reflection | Total Internal Reflection |
| Takes place in any medium, denser or rarer. | Takes place only in a denser medium. |
| Takes place for any angle of incidence. | Takes place only when the angle of incidence is greater than critical angle. |
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संबंधित प्रश्न
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.
The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of the ray PQ till it emerges out of the block. [Write necessary angles].
Write down the relationship between the critical angle and the refractive index of the medium.
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A ray of light is incident as a normal ray on the surface of separation of two different mediums. What is the value of the angle of incidence in this case?
Choose the correct option.
Select the WRONG statement.
What is a mirage? How does it occur?
A ray of light incident at an angle θ on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 5° and the prism is made of a material of refractive index 1.5, the angle of incidence is ______.
The critical angle for crown glass, which has a refractive index of 1.52, is:
