Physics for IGCSE & O level - Rays And Waves (Section 3 - No. 11)
In what situation does total internal reflection occur?
Light travels from a less dense to a more dense medium.
Light travels from a more dense to a less dense medium at an angle greater than the critical angle.
Light is absorbed by the medium.
Light is reflected from a surface.
Explanation
Total internal reflection occurs when light travels from a more dense to a less dense medium at an angle greater than the critical angle.
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