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Light Travels in Straight Line

The speed of ...

Question

The speed of light is _______ ms^-1.

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Solution

Light is the fastest-moving thing in the universe. The speed of light is 3×10⁸ ms^-1.
The light coming from the sun reaches the earth in about 8 minutes and 30 seconds.
Hence, The speed of light is 3×10⁸ ms^-1.

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