A helium-neon laser beam has a wavelength in air of 633 nm
A helium-neon laser beam has a wavelength in air of 633 nm. It takes 1.48 ns for the light to travel through 29 cm of an unknown liquid.
Determine the wavelength of the laser beam in the liquid?
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a helium-neon laser beam has a wavelength in air of 633 nm it takes 148 ns for the light to travel through 29 cm of an
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