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Light travels fastest in which of the following medium?
- AWater
- BAir
- CVacuum
- DSteel
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CCommunity
- Light travels faster in a vacuum as there are no dust particles in vacuum.
- The speed of light in a vacuum is 299,792 kilometers per second and it is always constant.
- The speed of light in a vacuum is 299,792 kilometers per second and it is always constant.