The wavelength of red light is 800 nm. Find its frequency. Speed of light = `3 xx 10^(8) m s^(-1).

Explanation

To find the frequency of red light with a wavelength of 800 nm, we can use the formula that relates the speed of light (c), wavelength (λ), and frequency (ν):

\[ \nu = \frac{c}{\lambda} \]

### Step 1: Convert Wavelength from Nanometers to Meters
The given wavelength is in nanometers (nm), and we need to convert it to meters (m) for consistency with the speed of light.
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