Refraction Of Light Video Lessons

Concept

# Problem: The wavelength of red helium-neon laser light in air is 632.8 nm.What is its wavelength in glass that has an index of refraction of 1.48?

###### FREE Expert Solution

Wavelength in a medium is given by:

$\overline{){{\mathbf{\lambda }}}_{\mathbf{m}\mathbf{e}\mathbf{d}\mathbf{i}\mathbf{u}\mathbf{m}}{\mathbf{=}}\frac{{\mathbf{\lambda }}_{\mathbf{0}}}{\mathbf{\eta }}}$

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###### Problem Details

The wavelength of red helium-neon laser light in air is 632.8 nm.

What is its wavelength in glass that has an index of refraction of 1.48?