Q.

What is colour of light related to?

A. Amplitude
B. Frequency
C. Quality
D. Velocity
Answer» A. Amplitude
Explanation: Colour or colour is the visual perceptual property corresponding in humans to the categories called red, green, blue, and others. Colour derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors.
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