According to the Ratio Principle

question 56

Multiple Choice

According to the ratio principle

• A) lightness constancy will occur as long as the ratio of light reflected from a white surface and a black surface remain constant.
• B) lightness constancy will occur if the ratio of light reflected from a white surface and a black surface increases as the overall light intensity increases.
• C) lightness constancy will occur if the ratio of light reflected from a white surface and a black surface decreases as the overall light intensity increases.
• D) lightness constancy can never occur.

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