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प्रश्न
A ray of light passes through a right-angled prism as shown in the figure. State the angles of incidence at the faces AC and BC.

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उत्तर
At AC – Angle is 45°
At BC – Angle is 0°
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संबंधित प्रश्न
In the given figure PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS.
- State the special name given to the angle of incidence ∠PQN of the ray PQ.
- What is the angle of refraction for the refracted ray QS?
- Name the phenomenon that occurs if the angle of incidence ∠PQN is increased.
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- Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P’ when seen vertically from above.
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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°).

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- Assertion (A): Propagation of light through an optical fibre is due to total internal reflection taking place at the core-cladding interface.
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