Question

s) what is the speed of light in Vacam?​

Answer 1

Explanation:

The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is defined as 299792458 metres per second.

Answer 2

$ractive \: index \: of \: light = \frac{speed \: of \: light \: \: }{speed \: of \: light \: in \:vaccum }$

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