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Physics, 31.12.2019 00:31 ayoismeisalex

Lights from a red laser pointer has a speed of 3.0 x 10^8 m/s and has a wavelenght of 6.5 x 10^-7 m. what is the frequency of this light

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Lights from a red laser pointer has a speed of 3.0 x 10^8 m/s and has a wavelenght of 6.5 x 10^-7 m....
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