Physics · Ray Optics
The critical angle of incidence ic for a ray incident from a denser to a rarer medium is that angle for which:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1the angle of reflection is 0°
- 2the angle of refraction is 0°
- 3the angle of refraction is 90°✓
- 4the angle of reflection is 90°
Correct answer
the angle of refraction is 90°
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