Question

what is the speed of light m/sec​

Answer 1

Hi friend here is your answer.

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299792458 m/s is the speed of light.

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Answer 2

${\sf{\red{ \underline{{\blue{The \: speed \: of \: light \: is \: { \orange{3 \times {10}^{8} } \: \frac{m}{s} \: .}}}}}}}$