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Order of Magnitude

The speed of ...

Question

The speed of light in vacuum is 3 x 10⁸ $m s^{- 1}$ .

A

True

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B

False

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Solution

The correct option is A True
The speed of light in a vacuum is 3 x 10⁸ m/s.
The first person to discover the speed of light was the ancient Greek philosopher Aristotle.
Hence, the given statement is true.

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