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Physics, 26.05.2020 23:01 hello123485

An infrared wave traveling through a vacuum has a frequency of 4.2
10^14 Hz. What is the wave's wavelength?
7.5 x 10^7 m
7.5 x 10^-7 m
O 7.1x10^-7 m
O 7.1x10^7 m

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An infrared wave traveling through a vacuum has a frequency of 4.2
10^14 Hz. What is the wave'...

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