The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in water? Refractive index of water 1.33.`

Explanation

To find the wavelength of light in water, we can use the relationship between the wavelength in a vacuum and the wavelength in a medium, which is given by the formula:

\[ \lambda_{medium} = \frac{\lambda_{vacuum}}{n} \]

where:
- \(\lambda_{medium}\) is the wavelength in the medium (water in this case),
...