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OpenStudy (anonymous):

wave length of light in vaccum?

OpenStudy (anonymous):

which light??? different em waves have different wavelengths... only speed is same i.e. 3 x 10^8m/s

OpenStudy (vincent-lyon.fr):

Visible light is from 450 nm to 750 nm in a vacuum.

OpenStudy (anonymous):

400nm

OpenStudy (anonymous):

speed=frequency x wavelength .. u may calculate

OpenStudy (anonymous):

its 400 nm to 780 nm

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