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Solve the following problems given below:

Problem: A helium-neon laser beam has a wavelength in air of 633 nm. It takes 1.48ns for the light to travel through 31.0cm of an unknown liquid.

A- What is the wavelength of the laser beam in the liquid?

Show how you get the answer, so that I can better understand how to do it.

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Category:- Physics
Reference No.:- M91232972

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