The Electromagnetic Spectrum Video Lessons

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Problem: The wavelength of red helium-neon laser light in air is 632.8 nm.What is its frequency?

FREE Expert Solution

Frequency, wavelength, and speed are related by

$\overline{){\mathbf{v}}{\mathbf{=}}{\mathbf{f}}{\mathbf{\lambda }}}$

Speed of light, c = 3.0 × 108 m/s

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Problem Details

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

What is its frequency?