Question: How did Young and Helmholtz come up with the Trichromatic Theory of colour perception? a. by deriving the theory with mathematical equations, from 'first principles'

How did Young and Helmholtz come up with the Trichromatic Theory of colour perception?

a.

by deriving the theory with mathematical equations, from 'first principles'

b.

by discovering the three light-sensitive photo-pigment cells (cones) in human eyes

c.

by observing and cataloguing humans' colour-perceiving experiences (i.e. based on what they described)

d.

by carefully measuring amount of wavelengths present in different lights, with an optical light-detecting instrument

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