Question

Order of magnitudes of speed of light in air is

Answer 1

Answer:

The index of refraction, of air, is 1.000293. The Speed of Light, in a vacuum, is defined to be 299792458m/s (to define the value of a meter, this is the exact value). So the speed of light in air is 299792458/1.000293, or about 299704644.54m/s.

Explanation:

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Answer 2

Explanation:

Find the order of magnitude of speed of light in free space is 2,99792458×10⁸ m/s