February 28, 2017

Homework Help: Physics, Please Help!

Posted by Michael on Wednesday, February 6, 2013 at 7:58pm.

A helium-neon laser beam has a wavelength in air of 633 nm. It takes 1.48 ns for the light to travel through 34.0 cm of an unknown liquid.

What is the wavelength of the laser beam in the liquid? (answer in ns)

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