Question

what is the speed of light , 3×10/8 km/s;3×10/8 m/s; 3×10/6 km/s; 3× 10/6 m/s​

Answer 1

Answer:

3×10/8 m/s

Explanation:

The speed of light in vacuum is usually denoted by a lowercase c, for "constant" or the Latin celeritas (meaning "swiftness, celerity"). In 1856, Wilhelm Eduard Weber and Rudolf Kohlrausch had used c for a different constant that was later shown to equal √2 times the speed of light in vacuum.

Answer 2

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3×10/8 m/s

Explanation:

The speed of light in vacuum is usually denoted by a lowercase c, for "constant" or the Latin celeritas (meaning "swiftness, celerity"). In 1856, Wilhelm Eduard Weber and Rudolf Kohlrausch had used c for a different constant that was later shown to equal √2 times the speed of light in vacuum.