The speed of light in vacuum is estimated as ___ meters/second.

1.	The speed of light in vacuum is estimated as ___ meters/second.
A.	3.00Â xÂ 108
B.	3.10Â xÂ 108
C.	3.12Â xÂ 108
D.	3.15Â xÂ 108
Answer» B. 3.10Â xÂ 108

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