Question 1
What affects our perception of the brightness of a colour?
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saturation of light waves◦
purity of light waves◦
amplitude of light waves◦
wavelength of light wavesQuestion 2
What are M.C. Escher's paintings, which often include impossible staircases and other structures, viewed as examples of?
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perceptual ambiguity◦
pointillism◦
cubism◦
Gestalt continuity