What is the speed light in vaccum how do the 1 frequrncy2 wavelenght of light change while
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.approximately 300,000 kilometers per second
itsmohit10:
Speed of light in vacuum is 3 x 100000000 m/s (approximately)..the exact value is 299792458 m/s...i didn't get your 2nd part of question what actually you want to ask?
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