Physics · Optics
The critical angle of a pair of a certain medium and air is 30°. The speed of light in that medium is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.8 × 108 m/s
- 22.2 × 108 m/s
- 31.5 × 108 m/s✓
- 41 × 108 m/s
Correct answer
1.5 × 108 m/s
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