Energy from the radiation is absorbed as it passes through the gas at certain wavelengths.

The reagent produces a color which is measured at a certain wavelength of light.

For example, color does not exist in and of itself but rather results from abstracting certain wavelengths upon our retina.

If that detector had certain wavelengths it would show up the tattoo on my chest.

These bonds absorb certain wavelengths of white light thereby transmitting others thus giving off a color.

In other words, will you get peaks of absorption at certain wavelengths.

Most objects appear to have color because their chemical structures absorb certain wavelengths of light and reflect others.

As the light passed through the halo gas, some of it was absorbed at certain known wavelengths.

A molecule or an atom absorbs at a certain wavelength.

You can't see certain wavelengths, hear certain sounds, because your brain has no coding information.