The subjective property of light related to its wavelength is ..........(colour, refractive index).

Dispersion is the process by which white light disperses into various different colors based on their wavelengths when passing through a prism.

The human eye perceives different wavelengths in visible light as different colors. The visible light spectrum is divided into seven bands each with a different wavelength range known as VIBGYOR.

Hence, the subjective property of light related to its wavelength is colour.