Physics
Draw diagrams to illustrate critical angle and total internal reflection.
Refraction Plane Surfaces
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Answer
Below diagrams illustrate critical angle and total internal reflection:
Critical Angle Diagram:
Total Internal Reflection Diagram:
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Related Questions
What is total internal reflection?
Figure shows a point source P inside a water container. Three rays A, B and C starting from the source P are shown up to the water surface.
(a) Show in the diagram, the path of these rays after striking the water surface. The critical angle for water-air surface is 48°.
(b) Name the phenomenon which the rays A, B and C exhibit.
State two conditions necessary for total internal reflection to occur.
Figure below shows two rays A and B travelling from water to air. If the critical angle for water-air surface is 48°, complete the ray diagram showing the refracted rays for each. State conditions when the ray will suffer total internal reflection.
