Physics · Physics
The refractive index of a medium is equal to the ratio of:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Speed of light in vacuum to the speed of light in the medium✓
- 2Speed of light in the medium to the speed of light in vacuum
- 3Speed of sound in vacuum to the speed of sound in the medium
- 4Speed of sound in the medium to the speed of sound in vacuum
Correct answer
Speed of light in vacuum to the speed of light in the medium
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