Question

1. which characteristic of a wave determines its color in visible light? frequency speed wavelength amplitude

Explanation:

In visible light, different wavelengths correspond to different colors. For example, red light has a relatively long - wavelength and violet light has a relatively short - wavelength. Frequency is related to wavelength by the speed of light formula, but it is the wavelength that directly determines color. Speed of light in a vacuum is constant for all visible light colors and amplitude is related to the intensity of light, not color.

Answer:

Wavelength