Question

Light owes its colour to its

Answer 1

This depends on the owner of the light like it can be wrapped by the transparent colour sheet

Answer 2

solution : frequency

light owes its colour to its frequency. of course, it is frequency that specifies the color of light or spectral radiation.

for example , you can make the red light have the same wavelength as green light by passing red light through glass or air.

but you can't make red light have the same frequency as green light by passing through glass.

hence, answer should be frequency.